If -750 is 45.505, what is the maximum rank?
CREATE TABLE "final_results" (
  "rank" real,
  "race_number" real,
  "name" text,
  "noc" text,
  "250m" text,
  "500m" text,
  "750m" text,
  "1_000m" text
);
SELECT MAX("rank") FROM "final_results" WHERE "750m"='45.505';