Home / 681,243.16-940,115.84-394,929.24

Finding the Fourth Proportional to 681,243.16, 940,115.84 and 394,929.24

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Solution

The fourth proportional to 681,243.16, 940,115.84 and 394,929.24 is: 545,002.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,243.16 : 940,115.84 = 394,929.24 : x
  2. Step 2: Convert to fraction form
    681,243.16/940,115.84 = 394,929.24/x
  3. Step 3: Cross multiply
    681,243.16x = 940,115.84 × 394,929.24
  4. Step 4: Simplify right side
    681,243.16x = 371,279,234,203.16
  5. Step 5: Solve for x
    x = 371,279,234,203.16/681,243.16
  6. Step 6: Final answer
    x = 545,002.51

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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.