Since she travels 183 miles in 3 hours, her speed is:
183 miles / 3 hours = 61 miles per hour
To calculate how long it will take her to drive a total of 366 miles, we can use the formula:
time = distance / speed
Plugging in the values, we get:
time = 366 miles / 61 miles per hour
time = 6 hours
Therefore, it will take Meghann 6 hours to drive a total of 366 miles at a constant speed using cruise control.