Since 1 Canadian Dollar is equal to 0.758605622178 US Dollars, we could say that n Canadian Dollars are equal to 0.758605622178 times n US Dollars. In other words, we could use the following formula:
US Dollars = Canadian Dollars x 0.758605622178
For example, let's say that we want to convert 2 Canadian Dollars to US Dollars. Then, we just replace Canadian Dollars in the abovementioned formula with 2:
US Dollars = 2 x 0.758605622178
That is, 2 Canadian Dollars are equal to 1.51721124436 US Dollars.