1. Find the side length of the triangle

Answer variants:
1.691
2.691
3.691
0.691
In \(\triangle ABC\), \(D\) and \(E\) are points of the sides \(AB\) and \(AC\), respectively. If \(DE \parallel BC\), \(\frac{AD}{DB} = \frac{4}{7}\) and \(AC = 7.4 \ cm\), then find \(AE\).
 
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The value of \(AE\) is
 \(cm\).
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