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Finding the Fourth Proportional to 541,411.20, 812,116.80 and 167,434.20

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Solution

The fourth proportional to 541,411.20, 812,116.80 and 167,434.20 is: 251,151.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,411.20 : 812,116.80 = 167,434.20 : x
  2. Step 2: Convert to fraction form
    541,411.20/812,116.80 = 167,434.20/x
  3. Step 3: Cross multiply
    541,411.20x = 812,116.80 × 167,434.20
  4. Step 4: Simplify right side
    541,411.20x = 135,976,126,714.56
  5. Step 5: Solve for x
    x = 135,976,126,714.56/541,411.20
  6. Step 6: Final answer
    x = 251,151.30

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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.