Final answer:
The boat ride will take approximately 17.09 hours to travel the entire navigable portion of the Seine River.
Step-by-step explanation:
To calculate the time it will take to travel the entire navigable portion of the Seine River, we can use the formula Time = Distance / Speed. In this case, the distance is 547 kilometers and the speed of the boat is 32 kilometers per hour.
Therefore, Time = 547 km / (32 km/h) = 17.09 hours.
So, it will take approximately 17.09 hours to travel the entire navigable portion of the Seine River.