Home / 681,044.20-939,840.94-394,730.36

Finding the Fourth Proportional to 681,044.20, 939,840.94 and 394,730.36

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Solution

The fourth proportional to 681,044.20, 939,840.94 and 394,730.36 is: 544,727.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,044.20 : 939,840.94 = 394,730.36 : x
  2. Step 2: Convert to fraction form
    681,044.20/939,840.94 = 394,730.36/x
  3. Step 3: Cross multiply
    681,044.20x = 939,840.94 × 394,730.36
  4. Step 4: Simplify right side
    681,044.20x = 370,983,752,588.94
  5. Step 5: Solve for x
    x = 370,983,752,588.94/681,044.20
  6. Step 6: Final answer
    x = 544,727.86

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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.