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Finding the Fourth Proportional to 1,062.34, 1,593.28 and 331.52

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Solution

The fourth proportional to 1,062.34, 1,593.28 and 331.52 is: 497.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,062.34 : 1,593.28 = 331.52 : x
  2. Step 2: Convert to fraction form
    1,062.34/1,593.28 = 331.52/x
  3. Step 3: Cross multiply
    1,062.34x = 1,593.28 × 331.52
  4. Step 4: Simplify right side
    1,062.34x = 528,195.70
  5. Step 5: Solve for x
    x = 528,195.70/1,062.34
  6. Step 6: Final answer
    x = 497.20

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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.