Home / 643,553.62-965,387.17-238,750.52

Finding the Fourth Proportional to 643,553.62, 965,387.17 and 238,750.52

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Solution

The fourth proportional to 643,553.62, 965,387.17 and 238,750.52 is: 358,146.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,553.62 : 965,387.17 = 238,750.52 : x
  2. Step 2: Convert to fraction form
    643,553.62/965,387.17 = 238,750.52/x
  3. Step 3: Cross multiply
    643,553.62x = 965,387.17 × 238,750.52
  4. Step 4: Simplify right side
    643,553.62x = 230,486,685,828.48
  5. Step 5: Solve for x
    x = 230,486,685,828.48/643,553.62
  6. Step 6: Final answer
    x = 358,146.83

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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.