\(x:19=4505:85\)
\(x:19=53\)
\(x=53\times19\)
\(x=1007\)
85 x X : 19 = 4505
X : 19 = 4505 : 85
X : 19 = 53
X = 53 x 19
X = 1007
`85xx x:19=4505`
`85xx x=4505xx19`
`85xx x=85595`
`x=85595:85`
`x=1007`
85 x X :19 = 4505
x : 19 = 4505 : 85
x : 19 = 53
x = 53 x 19
x = 1007
\(85\times x:19=4505\)
\(85\times x=4505\times19\)
\(85\times x=85595\)
\(x=85595:85\)
\(x=1007\)