Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the average population of the region with a density less than 487, a rank of 9, and an area larger than 377,944?

### Inputs:
table_name: table, columns: ['Rank', 'Country/Region', 'Population', 'Area (km 2 )', 'Density (Pop. per km 2 )']

### Response:
SELECT AVG Population FROM table WHERE Density (Pop. per km 2 ) < 487 AND Rank = 9 AND Area (km 2 ) > 377,944