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Finding the Fourth Proportional to 593.45, 818.97 and 331.46

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Solution

The fourth proportional to 593.45, 818.97 and 331.46 is: 457.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.45 : 818.97 = 331.46 : x
  2. Step 2: Convert to fraction form
    593.45/818.97 = 331.46/x
  3. Step 3: Cross multiply
    593.45x = 818.97 × 331.46
  4. Step 4: Simplify right side
    593.45x = 271,454.14
  5. Step 5: Solve for x
    x = 271,454.14/593.45
  6. Step 6: Final answer
    x = 457.42

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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.