$${ 4 }^{ 2 } / { 7 }^{ 2 } { 8 }^{ 2 } { 9 }^{ 2 }$$
$\frac{82944}{49}\approx 1692.734693878$
$$\frac{16}{7^{2}}\times 8^{2}\times 9^{2}$$
$$\frac{16}{49}\times 8^{2}\times 9^{2}$$
$$\frac{16}{49}\times 64\times 9^{2}$$
$$\frac{16\times 64}{49}\times 9^{2}$$
$$\frac{1024}{49}\times 9^{2}$$
$$\frac{1024}{49}\times 81$$
$$\frac{1024\times 81}{49}$$
$$\frac{82944}{49}$$
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$\frac{2 ^ {10} \cdot 3 ^ {4}}{7 ^ {2}} = 1692\frac{36}{49} = 1692.734693877551$
