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Finding the Fourth Proportional to 543,229.20, 814,843.80 and 169,252.20

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Solution

The fourth proportional to 543,229.20, 814,843.80 and 169,252.20 is: 253,878.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,229.20 : 814,843.80 = 169,252.20 : x
  2. Step 2: Convert to fraction form
    543,229.20/814,843.80 = 169,252.20/x
  3. Step 3: Cross multiply
    543,229.20x = 814,843.80 × 169,252.20
  4. Step 4: Simplify right side
    543,229.20x = 137,914,105,806.36
  5. Step 5: Solve for x
    x = 137,914,105,806.36/543,229.20
  6. Step 6: Final answer
    x = 253,878.30

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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.