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Finding the Fourth Proportional to 425,334.50, 636,951.30 and 317,004.14

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Solution

The fourth proportional to 425,334.50, 636,951.30 and 317,004.14 is: 474,723.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,334.50 : 636,951.30 = 317,004.14 : x
  2. Step 2: Convert to fraction form
    425,334.50/636,951.30 = 317,004.14/x
  3. Step 3: Cross multiply
    425,334.50x = 636,951.30 × 317,004.14
  4. Step 4: Simplify right side
    425,334.50x = 201,916,194,704.86
  5. Step 5: Solve for x
    x = 201,916,194,704.86/425,334.50
  6. Step 6: Final answer
    x = 474,723.29

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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.