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Finding the Fourth Proportional to 274,491.40, 411,737.10 and 108,257.80

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Solution

The fourth proportional to 274,491.40, 411,737.10 and 108,257.80 is: 162,386.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,491.40 : 411,737.10 = 108,257.80 : x
  2. Step 2: Convert to fraction form
    274,491.40/411,737.10 = 108,257.80/x
  3. Step 3: Cross multiply
    274,491.40x = 411,737.10 × 108,257.80
  4. Step 4: Simplify right side
    274,491.40x = 44,573,752,624.38
  5. Step 5: Solve for x
    x = 44,573,752,624.38/274,491.40
  6. Step 6: Final answer
    x = 162,386.70

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1.5x scale

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.