North Dakota is about 43 times bigger than French Polynesia.

French Polynesia is approximately 4,167 sq km, while North Dakota is approximately 178,647 sq km, making North Dakota 4,187% larger than French Polynesia. Meanwhile, the population of French Polynesia is ~299,356 people (373,235 more people live in North Dakota).
Tip: This to-scale comparison of French Polynesia vs. North Dakota uses the Mercator projection, which distorts the size of regions near the poles.