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Finding the Fourth Proportional to 1,951,947.15, 2,923,656.48 and 811,250.88

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Solution

The fourth proportional to 1,951,947.15, 2,923,656.48 and 811,250.88 is: 1,215,104.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951,947.15 : 2,923,656.48 = 811,250.88 : x
  2. Step 2: Convert to fraction form
    1,951,947.15/2,923,656.48 = 811,250.88/x
  3. Step 3: Cross multiply
    1,951,947.15x = 2,923,656.48 × 811,250.88
  4. Step 4: Simplify right side
    1,951,947.15x = 2,371,818,892,217.70
  5. Step 5: Solve for x
    x = 2,371,818,892,217.70/1,951,947.15
  6. Step 6: Final answer
    x = 1,215,104.05

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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.