Home / 681,553.98-940,545.27-395,240.45

Finding the Fourth Proportional to 681,553.98, 940,545.27 and 395,240.45

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Solution

The fourth proportional to 681,553.98, 940,545.27 and 395,240.45 is: 545,432.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,553.98 : 940,545.27 = 395,240.45 : x
  2. Step 2: Convert to fraction form
    681,553.98/940,545.27 = 395,240.45/x
  3. Step 3: Cross multiply
    681,553.98x = 940,545.27 × 395,240.45
  4. Step 4: Simplify right side
    681,553.98x = 371,741,531,057.45
  5. Step 5: Solve for x
    x = 371,741,531,057.45/681,553.98
  6. Step 6: Final answer
    x = 545,432.27

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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.