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Finding the Fourth Proportional to 593.19, 818.58 and 331.20

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Solution

The fourth proportional to 593.19, 818.58 and 331.20 is: 457.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.19 : 818.58 = 331.20 : x
  2. Step 2: Convert to fraction form
    593.19/818.58 = 331.20/x
  3. Step 3: Cross multiply
    593.19x = 818.58 × 331.20
  4. Step 4: Simplify right side
    593.19x = 271,113.70
  5. Step 5: Solve for x
    x = 271,113.70/593.19
  6. Step 6: Final answer
    x = 457.04

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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.