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Finding the Fourth Proportional to 1,967,846.60, 2,951,769.90 and 1,296,000.20

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Solution

The fourth proportional to 1,967,846.60, 2,951,769.90 and 1,296,000.20 is: 1,944,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,967,846.60 : 2,951,769.90 = 1,296,000.20 : x
  2. Step 2: Convert to fraction form
    1,967,846.60/2,951,769.90 = 1,296,000.20/x
  3. Step 3: Cross multiply
    1,967,846.60x = 2,951,769.90 × 1,296,000.20
  4. Step 4: Simplify right side
    1,967,846.60x = 3,825,494,380,753.98
  5. Step 5: Solve for x
    x = 3,825,494,380,753.98/1,967,846.60
  6. Step 6: Final answer
    x = 1,944,000.30

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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.