Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_19166421_1 (current_ratio VARCHAR, net_worth_to_fixed_assets VARCHAR)

### Question ###
If the net worth of fixed assets is 621, what is the current ratio?

### Accurate SQL ###

SELECT current_ratio FROM table_19166421_1 WHERE net_worth_to_fixed_assets = 621