To determine how long it would take Frank to drive 441 miles at the same rate, we can divide the distance by the rate to find the time. The rate is equal to the distance divided by the time, so we can find it by dividing the distance Frank traveled by the time it took him to travel that distance.
In this case, the distance Frank traveled is 567 miles and the time it took him to travel that distance is 9 hours, so the rate is 567 miles / 9 hours = 63 miles per hour.
To find the time it would take Frank to travel 441 miles at this rate, we can divide the distance by the rate. This would give us 441 miles / 63 miles per hour = <<441/63=7>>7 hours.
Therefore, if Frank were to travel 441 miles at the same rate as his previous trip, it would take him 7 hours.