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Finding the Fourth Proportional to 432,100.20, 647,372.70 and 369,892.20

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Solution

The fourth proportional to 432,100.20, 647,372.70 and 369,892.20 is: 554,172.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,100.20 : 647,372.70 = 369,892.20 : x
  2. Step 2: Convert to fraction form
    432,100.20/647,372.70 = 369,892.20/x
  3. Step 3: Cross multiply
    432,100.20x = 647,372.70 × 369,892.20
  4. Step 4: Simplify right side
    432,100.20x = 239,458,112,222.94
  5. Step 5: Solve for x
    x = 239,458,112,222.94/432,100.20
  6. Step 6: Final answer
    x = 554,172.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.