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Finding the Fourth Proportional to 532.16, 734.72 and 473.76

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Solution

The fourth proportional to 532.16, 734.72 and 473.76 is: 654.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.16 : 734.72 = 473.76 : x
  2. Step 2: Convert to fraction form
    532.16/734.72 = 473.76/x
  3. Step 3: Cross multiply
    532.16x = 734.72 × 473.76
  4. Step 4: Simplify right side
    532.16x = 348,080.95
  5. Step 5: Solve for x
    x = 348,080.95/532.16
  6. Step 6: Final answer
    x = 654.09

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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.