Home / 352,724.52-486,478.20-231,989.76

Finding the Fourth Proportional to 352,724.52, 486,478.20 and 231,989.76

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Solution

The fourth proportional to 352,724.52, 486,478.20 and 231,989.76 is: 319,960.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,724.52 : 486,478.20 = 231,989.76 : x
  2. Step 2: Convert to fraction form
    352,724.52/486,478.20 = 231,989.76/x
  3. Step 3: Cross multiply
    352,724.52x = 486,478.20 × 231,989.76
  4. Step 4: Simplify right side
    352,724.52x = 112,857,960,863.23
  5. Step 5: Solve for x
    x = 112,857,960,863.23/352,724.52
  6. Step 6: Final answer
    x = 319,960.63

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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.