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Finding the Fourth Proportional to 542,672.10, 814,008.15 and 277,251.30

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Solution

The fourth proportional to 542,672.10, 814,008.15 and 277,251.30 is: 415,876.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,672.10 : 814,008.15 = 277,251.30 : x
  2. Step 2: Convert to fraction form
    542,672.10/814,008.15 = 277,251.30/x
  3. Step 3: Cross multiply
    542,672.10x = 814,008.15 × 277,251.30
  4. Step 4: Simplify right side
    542,672.10x = 225,684,817,798.10
  5. Step 5: Solve for x
    x = 225,684,817,798.10/542,672.10
  6. Step 6: Final answer
    x = 415,876.95

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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.