Home / 681,150.28-939,987.60-394,836.52

Finding the Fourth Proportional to 681,150.28, 939,987.60 and 394,836.52

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Solution

The fourth proportional to 681,150.28, 939,987.60 and 394,836.52 is: 544,874.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,150.28 : 939,987.60 = 394,836.52 : x
  2. Step 2: Convert to fraction form
    681,150.28/939,987.60 = 394,836.52/x
  3. Step 3: Cross multiply
    681,150.28x = 939,987.60 × 394,836.52
  4. Step 4: Simplify right side
    681,150.28x = 371,141,432,827.15
  5. Step 5: Solve for x
    x = 371,141,432,827.15/681,150.28
  6. Step 6: Final answer
    x = 544,874.52

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1.5x scale

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.