Home / 971,115.62-1,340,141.37-541,387.13

Finding the Fourth Proportional to 971,115.62, 1,340,141.37 and 541,387.13

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Solution

The fourth proportional to 971,115.62, 1,340,141.37 and 541,387.13 is: 747,115.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,115.62 : 1,340,141.37 = 541,387.13 : x
  2. Step 2: Convert to fraction form
    971,115.62/1,340,141.37 = 541,387.13/x
  3. Step 3: Cross multiply
    971,115.62x = 1,340,141.37 × 541,387.13
  4. Step 4: Simplify right side
    971,115.62x = 725,535,290,098.57
  5. Step 5: Solve for x
    x = 725,535,290,098.57/971,115.62
  6. Step 6: Final answer
    x = 747,115.25

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.