question: What is the highest crude death rate when deaths are 3 433 and average population is greater than 298?
answer: SELECT MAX(crude_death_rate__per_1000_) FROM table_name_16 WHERE deaths = "3 433" AND average_population__x_1000_ > 298
context: CREATE TABLE table_name_16 (crude_death_rate__per_1000_ INTEGER, deaths VARCHAR, average_population__x_1000_ VARCHAR)