I can't think of a way to do that by changing a letter three times, but here are two where you change the letter twice:
Ratio - Ratis(latin word meaning raft or boat) - Rates
Ratio - Rateo(Italian word meaning accrual or accumulation) - Rates
A fraction is a ratio... even when you don't change its form. 1/2 is "one half/ one over two/ one to two ratio"
A fraction is a ratio
Rates are ratios ... Speed is a rate of distance per unit of time... ratio of distance to time. Proportions are two equal ratios, whether they are rates or not.
Ratio
Nc 75 ratio of roll change gear
The ratio of Omani Rials to US Dollars is>>> 1.0 OMR : 2.59723394585 USD .....As of today (Rates are always changing)
A fraction is a ratio... even when you don't change its form. 1/2 is "one half/ one over two/ one to two ratio"
Changing the ratio of nitrogen and oxygen atoms can result in different compounds being formed. For example, nitrogen dioxide (NO2) and nitric oxide (NO) are both nitrogen-oxygen compounds with different ratios of N to O atoms. Changing this ratio can affect the properties of the compounds, such as their reactivity and toxicity.
The value of the ratio is the same.
rates
The rates change every day. Use this currency converter to calculate it.
Gamma decay does not change the neutron-to-proton ratio for a nucleus. Gamma decay involves the emission of gamma rays, which are high-energy photons, without changing the composition of the nucleus.
The ratio of effusion rates for two gases is given by the square root of the inverse ratio of their molar masses. The molar mass of Ar is approximately 40 g/mol, and for Kr it is approximately 84 g/mol. So, the ratio of effusion rates for Ar and Kr is √(84/40) ≈ 1.3.
You can't, unless you have a crazy tap changer so you can remove or add windings to change the ratio from N1 > N2 to N2 > N1.
In a transformer, you increase or decrease the voltage by changing the turns ratio between the primary or secondary windings. Increase the turns on primary, and secondary voltage goes down. Increase the turns on secondary, and secondary voltage goes up. Note that this usually involves choosing a different transformer, as changing the turns ratio is not something that can be easily done in the field. Some transformers have multiple taps on one of the windings which can be used to change turns ratio.
A fraction is a ratio
It not only can change but really DOES change the formula.Changing the subscript in a chemical formula changes the number of atoms to which the particular subscript belongs. Doing this will change the formula completely, making it representative of another substance completely.