Ответ:\(4{,}6 \times 93 = 4{,}6 \times (90+3)=414+13{,}8=427{,}8\).\(9{,}3 \times 7{,}4 = 68{,}82\).\(0{,}69 \times 7{,}2 = 4{,}968\).\(0{,}27 \times 0{,}86 = 0{,}2322\).Ответ: 427,8; 68,82; 4,968; 0,2322.