Step 1:
The first step to converting 717290.216578 to a fraction is to re-write 717290.216578 in the form p/q where p and q are both positive integers. To start with, 717290.216578 can be written as simply 717290.216578/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 717290.216578, which in this case is 6. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 717290.216578/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 717290.216578/1 each by 1000000:
Step 3:
Now the last step is to simplify the fraction (if possible) by finding similar factors and cancelling them out, which leads to the following answer for 717290.216578 as a fraction:
717290/1 / 1