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Finding the Fourth Proportional to 593.12, 818.43 and 331.10

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Solution

The fourth proportional to 593.12, 818.43 and 331.10 is: 456.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.12 : 818.43 = 331.10 : x
  2. Step 2: Convert to fraction form
    593.12/818.43 = 331.10/x
  3. Step 3: Cross multiply
    593.12x = 818.43 × 331.10
  4. Step 4: Simplify right side
    593.12x = 270,982.17
  5. Step 5: Solve for x
    x = 270,982.17/593.12
  6. Step 6: Final answer
    x = 456.88

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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.