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Finding the Fourth Proportional to 432,003.20, 647,227.20 and 369,795.20

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Solution

The fourth proportional to 432,003.20, 647,227.20 and 369,795.20 is: 554,027.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,003.20 : 647,227.20 = 369,795.20 : x
  2. Step 2: Convert to fraction form
    432,003.20/647,227.20 = 369,795.20/x
  3. Step 3: Cross multiply
    432,003.20x = 647,227.20 × 369,795.20
  4. Step 4: Simplify right side
    432,003.20x = 239,341,511,869.44
  5. Step 5: Solve for x
    x = 239,341,511,869.44/432,003.20
  6. Step 6: Final answer
    x = 554,027.17

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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.