Home / 681,131.14-939,961.18-394,817.29

Finding the Fourth Proportional to 681,131.14, 939,961.18 and 394,817.29

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Solution

The fourth proportional to 681,131.14, 939,961.18 and 394,817.29 is: 544,847.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,131.14 : 939,961.18 = 394,817.29 : x
  2. Step 2: Convert to fraction form
    681,131.14/939,961.18 = 394,817.29/x
  3. Step 3: Cross multiply
    681,131.14x = 939,961.18 × 394,817.29
  4. Step 4: Simplify right side
    681,131.14x = 371,112,925,792.80
  5. Step 5: Solve for x
    x = 371,112,925,792.80/681,131.14
  6. Step 6: Final answer
    x = 544,847.98

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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.