Home / 717,076.14-989,545.92-394,788.66

Finding the Fourth Proportional to 717,076.14, 989,545.92 and 394,788.66

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Solution

The fourth proportional to 717,076.14, 989,545.92 and 394,788.66 is: 544,797.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,076.14 : 989,545.92 = 394,788.66 : x
  2. Step 2: Convert to fraction form
    717,076.14/989,545.92 = 394,788.66/x
  3. Step 3: Cross multiply
    717,076.14x = 989,545.92 × 394,788.66
  4. Step 4: Simplify right side
    717,076.14x = 390,661,507,765.27
  5. Step 5: Solve for x
    x = 390,661,507,765.27/717,076.14
  6. Step 6: Final answer
    x = 544,797.81

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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.