Divide:

$600$ in the ratio $3 : 9$

Divide:

$38$ in the ratio $11 : 8$

Divide:

$300$ in the ratio $11 : 4$

Divide:

$2300$ in the ratio $1:2:7$

A bag of N : P: K fertilizer contains nitrogen, phosphorus and potassium in the ratio $2:3:3.$Work out the mass of each ingredient if the bags have total mass of one kilogram.