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

Mississippi is approximately 121,489 sq km, while Fort Lauderdale (excluding the city's 9.9 sq km of water area) is approximately 90 sq km, making Fort Lauderdale 0.07% the size of Mississippi.
Tip: This to-scale comparison of Mississippi vs. Fort Lauderdale uses the Mercator projection, which distorts the size of regions near the poles.