Home / 865,001.38-1,193,287.80-542,550.10

Finding the Fourth Proportional to 865,001.38, 1,193,287.80 and 542,550.10

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Solution

The fourth proportional to 865,001.38, 1,193,287.80 and 542,550.10 is: 748,459.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,001.38 : 1,193,287.80 = 542,550.10 : x
  2. Step 2: Convert to fraction form
    865,001.38/1,193,287.80 = 542,550.10/x
  3. Step 3: Cross multiply
    865,001.38x = 1,193,287.80 × 542,550.10
  4. Step 4: Simplify right side
    865,001.38x = 647,418,415,218.78
  5. Step 5: Solve for x
    x = 647,418,415,218.78/865,001.38
  6. Step 6: Final answer
    x = 748,459.40

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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.