Mississippi is about 1,350 times bigger than Fort Lauderdale.

Fort Lauderdale (excluding the city's 9.9 sq km of water area) is approximately 90 sq km, while Mississippi is approximately 121,489 sq km, making Mississippi 134,888% larger than Fort Lauderdale.
Tip: This to-scale comparison of Fort Lauderdale vs. Mississippi uses the Mercator projection, which distorts the size of regions near the poles.