Home / 394,112.73-539,936.40-379,352.61

Finding the Fourth Proportional to 394,112.73, 539,936.40 and 379,352.61

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Solution

The fourth proportional to 394,112.73, 539,936.40 and 379,352.61 is: 519,714.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,112.73 : 539,936.40 = 379,352.61 : x
  2. Step 2: Convert to fraction form
    394,112.73/539,936.40 = 379,352.61/x
  3. Step 3: Cross multiply
    394,112.73x = 539,936.40 × 379,352.61
  4. Step 4: Simplify right side
    394,112.73x = 204,826,282,574.00
  5. Step 5: Solve for x
    x = 204,826,282,574.00/394,112.73
  6. Step 6: Final answer
    x = 519,714.96

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.