Home / 681,062.30-939,865.97-394,748.46

Finding the Fourth Proportional to 681,062.30, 939,865.97 and 394,748.46

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Solution

The fourth proportional to 681,062.30, 939,865.97 and 394,748.46 is: 544,752.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,062.30 : 939,865.97 = 394,748.46 : x
  2. Step 2: Convert to fraction form
    681,062.30/939,865.97 = 394,748.46/x
  3. Step 3: Cross multiply
    681,062.30x = 939,865.97 × 394,748.46
  4. Step 4: Simplify right side
    681,062.30x = 371,010,643,770.47
  5. Step 5: Solve for x
    x = 371,010,643,770.47/681,062.30
  6. Step 6: Final answer
    x = 544,752.87

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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.