Home / 526,148.53-725,912.89-321,986.61

Finding the Fourth Proportional to 526,148.53, 725,912.89 and 321,986.61

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Solution

The fourth proportional to 526,148.53, 725,912.89 and 321,986.61 is: 444,236.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,148.53 : 725,912.89 = 321,986.61 : x
  2. Step 2: Convert to fraction form
    526,148.53/725,912.89 = 321,986.61/x
  3. Step 3: Cross multiply
    526,148.53x = 725,912.89 × 321,986.61
  4. Step 4: Simplify right side
    526,148.53x = 233,734,229,801.44
  5. Step 5: Solve for x
    x = 233,734,229,801.44/526,148.53
  6. Step 6: Final answer
    x = 444,236.21

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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.