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_20702 ( "Year" real, "Lansing (LAN)" text, "Detroit (DTW)" text, "Grand Rapids (GRR)" text, "Flint (FNT)" text, "Kalamazoo (AZO)" text, "Saginaw (MBS)" text )

### Question ###
When Saginaw's fare is $470.47, what was the fare to Grand Rapids?

### Accurate SQL ###

SELECT "Grand Rapids (GRR)" FROM table_20702 WHERE "Saginaw (MBS)" = '$470.47'