A square footing of 4m side is placed at 1 m depth in a sand deposit. The dry unit weight (γ) of sand is 15 kN/m³. This footing has an ultimate bearing capacity of 600 kPa. Consider the depth factors; d_q= d_γ = 1.0 and the bearing capacity factor: N_γ = 18.This footing is placed at a depth of 2m in the same soil deposit. For a factor of safety of 3.0 per Terzaghi’s theory, the safe bearing capacity (in kPa) of this footing would be ________