Home / 394,205.40-591,453.90-127,974.60

Finding the Fourth Proportional to 394,205.40, 591,453.90 and 127,974.60

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Solution

The fourth proportional to 394,205.40, 591,453.90 and 127,974.60 is: 192,009.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,205.40 : 591,453.90 = 127,974.60 : x
  2. Step 2: Convert to fraction form
    394,205.40/591,453.90 = 127,974.60/x
  3. Step 3: Cross multiply
    394,205.40x = 591,453.90 × 127,974.60
  4. Step 4: Simplify right side
    394,205.40x = 75,691,076,270.94
  5. Step 5: Solve for x
    x = 75,691,076,270.94/394,205.40
  6. Step 6: Final answer
    x = 192,009.23

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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.