Home / 386,001.11-579,040.14-161,431.85

Finding the Fourth Proportional to 386,001.11, 579,040.14 and 161,431.85

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Solution

The fourth proportional to 386,001.11, 579,040.14 and 161,431.85 is: 242,163.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,001.11 : 579,040.14 = 161,431.85 : x
  2. Step 2: Convert to fraction form
    386,001.11/579,040.14 = 161,431.85/x
  3. Step 3: Cross multiply
    386,001.11x = 579,040.14 × 161,431.85
  4. Step 4: Simplify right side
    386,001.11x = 93,475,523,077.43
  5. Step 5: Solve for x
    x = 93,475,523,077.43/386,001.11
  6. Step 6: Final answer
    x = 242,163.87

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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.