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Finding the Fourth Proportional to 593.12, 818.51 and 331.13

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Solution

The fourth proportional to 593.12, 818.51 and 331.13 is: 456.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.12 : 818.51 = 331.13 : x
  2. Step 2: Convert to fraction form
    593.12/818.51 = 331.13/x
  3. Step 3: Cross multiply
    593.12x = 818.51 × 331.13
  4. Step 4: Simplify right side
    593.12x = 271,027.47
  5. Step 5: Solve for x
    x = 271,027.47/593.12
  6. Step 6: Final answer
    x = 456.96

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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.