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Finding the Fourth Proportional to 381,697.60, 572,546.40 and 224,233.60

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Solution

The fourth proportional to 381,697.60, 572,546.40 and 224,233.60 is: 336,350.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,697.60 : 572,546.40 = 224,233.60 : x
  2. Step 2: Convert to fraction form
    381,697.60/572,546.40 = 224,233.60/x
  3. Step 3: Cross multiply
    381,697.60x = 572,546.40 × 224,233.60
  4. Step 4: Simplify right side
    381,697.60x = 128,384,140,439.04
  5. Step 5: Solve for x
    x = 128,384,140,439.04/381,697.60
  6. Step 6: Final answer
    x = 336,350.40

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Why These Related Problems?

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