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Finding the Fourth Proportional to 593.12, 818.49 and 331.16

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Solution

The fourth proportional to 593.12, 818.49 and 331.16 is: 456.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.12 : 818.49 = 331.16 : x
  2. Step 2: Convert to fraction form
    593.12/818.49 = 331.16/x
  3. Step 3: Cross multiply
    593.12x = 818.49 × 331.16
  4. Step 4: Simplify right side
    593.12x = 271,051.15
  5. Step 5: Solve for x
    x = 271,051.15/593.12
  6. Step 6: Final answer
    x = 456.99

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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.