Home / 541,311.20-811,966.80-141,951.20

Finding the Fourth Proportional to 541,311.20, 811,966.80 and 141,951.20

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Solution

The fourth proportional to 541,311.20, 811,966.80 and 141,951.20 is: 212,926.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,311.20 : 811,966.80 = 141,951.20 : x
  2. Step 2: Convert to fraction form
    541,311.20/811,966.80 = 141,951.20/x
  3. Step 3: Cross multiply
    541,311.20x = 811,966.80 × 141,951.20
  4. Step 4: Simplify right side
    541,311.20x = 115,259,661,620.16
  5. Step 5: Solve for x
    x = 115,259,661,620.16/541,311.20
  6. Step 6: Final answer
    x = 212,926.80

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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.