Home / 515,545.38-773,883.78-409,610.28

Finding the Fourth Proportional to 515,545.38, 773,883.78 and 409,610.28

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Solution

The fourth proportional to 515,545.38, 773,883.78 and 409,610.28 is: 614,864.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,545.38 : 773,883.78 = 409,610.28 : x
  2. Step 2: Convert to fraction form
    515,545.38/773,883.78 = 409,610.28/x
  3. Step 3: Cross multiply
    515,545.38x = 773,883.78 × 409,610.28
  4. Step 4: Simplify right side
    515,545.38x = 316,990,751,813.26
  5. Step 5: Solve for x
    x = 316,990,751,813.26/515,545.38
  6. Step 6: Final answer
    x = 614,864.89

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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.