Fort Lauderdale is about 2.4 times smaller than Seattle.

Seattle is approximately 217 sq km, while Fort Lauderdale (excluding the city's 9.9 sq km of water area) is approximately 90 sq km, making Fort Lauderdale 41.42% the size of Seattle.
Tip: This to-scale comparison of Seattle vs. Fort Lauderdale uses the Mercator projection, which distorts the size of regions near the poles.
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