Home / 392,766.80-588,761.40-192,923.60

Finding the Fourth Proportional to 392,766.80, 588,761.40 and 192,923.60

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Solution

The fourth proportional to 392,766.80, 588,761.40 and 192,923.60 is: 289,194.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,766.80 : 588,761.40 = 192,923.60 : x
  2. Step 2: Convert to fraction form
    392,766.80/588,761.40 = 192,923.60/x
  3. Step 3: Cross multiply
    392,766.80x = 588,761.40 × 192,923.60
  4. Step 4: Simplify right side
    392,766.80x = 113,585,968,829.04
  5. Step 5: Solve for x
    x = 113,585,968,829.04/392,766.80
  6. Step 6: Final answer
    x = 289,194.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.