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Finding the Fourth Proportional to 436,970.28, 655,446.92 and 196,951.92

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Solution

The fourth proportional to 436,970.28, 655,446.92 and 196,951.92 is: 295,424.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,970.28 : 655,446.92 = 196,951.92 : x
  2. Step 2: Convert to fraction form
    436,970.28/655,446.92 = 196,951.92/x
  3. Step 3: Cross multiply
    436,970.28x = 655,446.92 × 196,951.92
  4. Step 4: Simplify right side
    436,970.28x = 129,091,529,352.09
  5. Step 5: Solve for x
    x = 129,091,529,352.09/436,970.28
  6. Step 6: Final answer
    x = 295,424.05

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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.