convert 490 square feet to square metres

3.2808399  feet in a metre

so

$${{\mathtt{3.280\: \!839\: \!9}}}^{{\mathtt{2}}} = {\mathtt{10.763\: \!910\: \!449\: \!432\: \!01}}$$     feet squared in a metre squared

$${\frac{{\mathtt{490}}}{{\mathtt{10.763\: \!910\: \!449\: \!432\: \!01}}}} = {\mathtt{45.522\: \!489\: \!461\: \!611\: \!631\: \!9}}$$       metres squared in a 490 feet squared