Home / 1,277,459.61-1,915,862.44-378,691.17

Finding the Fourth Proportional to 1,277,459.61, 1,915,862.44 and 378,691.17

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Solution

The fourth proportional to 1,277,459.61, 1,915,862.44 and 378,691.17 is: 567,939.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,459.61 : 1,915,862.44 = 378,691.17 : x
  2. Step 2: Convert to fraction form
    1,277,459.61/1,915,862.44 = 378,691.17/x
  3. Step 3: Cross multiply
    1,277,459.61x = 1,915,862.44 × 378,691.17
  4. Step 4: Simplify right side
    1,277,459.61x = 725,520,188,962.66
  5. Step 5: Solve for x
    x = 725,520,188,962.66/1,277,459.61
  6. Step 6: Final answer
    x = 567,939.83

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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.