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Finding the Fourth Proportional to 932.01, 1,398 and 354.48

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Solution

The fourth proportional to 932.01, 1,398 and 354.48 is: 531.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    932.01 : 1,398 = 354.48 : x
  2. Step 2: Convert to fraction form
    932.01/1,398 = 354.48/x
  3. Step 3: Cross multiply
    932.01x = 1,398 × 354.48
  4. Step 4: Simplify right side
    932.01x = 495,563.04
  5. Step 5: Solve for x
    x = 495,563.04/932.01
  6. Step 6: Final answer
    x = 531.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.