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Finding the Fourth Proportional to 349,086.60, 523,629.90 and 323,425.80

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Solution

The fourth proportional to 349,086.60, 523,629.90 and 323,425.80 is: 485,138.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,086.60 : 523,629.90 = 323,425.80 : x
  2. Step 2: Convert to fraction form
    349,086.60/523,629.90 = 323,425.80/x
  3. Step 3: Cross multiply
    349,086.60x = 523,629.90 × 323,425.80
  4. Step 4: Simplify right side
    349,086.60x = 169,355,419,311.42
  5. Step 5: Solve for x
    x = 169,355,419,311.42/349,086.60
  6. Step 6: Final answer
    x = 485,138.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.