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Finding the Fourth Proportional to 543,042.20, 814,640.10 and 169,026.20

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Solution

The fourth proportional to 543,042.20, 814,640.10 and 169,026.20 is: 253,563.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,042.20 : 814,640.10 = 169,026.20 : x
  2. Step 2: Convert to fraction form
    543,042.20/814,640.10 = 169,026.20/x
  3. Step 3: Cross multiply
    543,042.20x = 814,640.10 × 169,026.20
  4. Step 4: Simplify right side
    543,042.20x = 137,695,520,470.62
  5. Step 5: Solve for x
    x = 137,695,520,470.62/543,042.20
  6. Step 6: Final answer
    x = 253,563.20

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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.