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Finding the Fourth Proportional to 541,280.70, 812,115.45 and 225,834.30

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Solution

The fourth proportional to 541,280.70, 812,115.45 and 225,834.30 is: 338,832.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,280.70 : 812,115.45 = 225,834.30 : x
  2. Step 2: Convert to fraction form
    541,280.70/812,115.45 = 225,834.30/x
  3. Step 3: Cross multiply
    541,280.70x = 812,115.45 × 225,834.30
  4. Step 4: Simplify right side
    541,280.70x = 183,403,524,169.94
  5. Step 5: Solve for x
    x = 183,403,524,169.94/541,280.70
  6. Step 6: Final answer
    x = 338,832.56

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Double scale
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Similar ratio
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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.