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Finding the Fourth Proportional to 952.16, 1,313.92 and 538.16

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Solution

The fourth proportional to 952.16, 1,313.92 and 538.16 is: 742.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.16 : 1,313.92 = 538.16 : x
  2. Step 2: Convert to fraction form
    952.16/1,313.92 = 538.16/x
  3. Step 3: Cross multiply
    952.16x = 1,313.92 × 538.16
  4. Step 4: Simplify right side
    952.16x = 707,099.19
  5. Step 5: Solve for x
    x = 707,099.19/952.16
  6. Step 6: Final answer
    x = 742.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.