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Finding the Fourth Proportional to 408,371.76, 563,553.54 and 227,081.70

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Solution

The fourth proportional to 408,371.76, 563,553.54 and 227,081.70 is: 313,373.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,371.76 : 563,553.54 = 227,081.70 : x
  2. Step 2: Convert to fraction form
    408,371.76/563,553.54 = 227,081.70/x
  3. Step 3: Cross multiply
    408,371.76x = 563,553.54 × 227,081.70
  4. Step 4: Simplify right side
    408,371.76x = 127,972,695,904.22
  5. Step 5: Solve for x
    x = 127,972,695,904.22/408,371.76
  6. Step 6: Final answer
    x = 313,373.03

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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.