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Finding the Fourth Proportional to 532.48, 734.16 and 434.24

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Solution

The fourth proportional to 532.48, 734.16 and 434.24 is: 598.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.48 : 734.16 = 434.24 : x
  2. Step 2: Convert to fraction form
    532.48/734.16 = 434.24/x
  3. Step 3: Cross multiply
    532.48x = 734.16 × 434.24
  4. Step 4: Simplify right side
    532.48x = 318,801.64
  5. Step 5: Solve for x
    x = 318,801.64/532.48
  6. Step 6: Final answer
    x = 598.71

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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.