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Finding the Fourth Proportional to 3,858,316.64, 5,787,471.90 and 1,162,641.87

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Solution

The fourth proportional to 3,858,316.64, 5,787,471.90 and 1,162,641.87 is: 1,743,961.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858,316.64 : 5,787,471.90 = 1,162,641.87 : x
  2. Step 2: Convert to fraction form
    3,858,316.64/5,787,471.90 = 1,162,641.87/x
  3. Step 3: Cross multiply
    3,858,316.64x = 5,787,471.90 × 1,162,641.87
  4. Step 4: Simplify right side
    3,858,316.64x = 6,728,757,156,748.36
  5. Step 5: Solve for x
    x = 6,728,757,156,748.36/3,858,316.64
  6. Step 6: Final answer
    x = 1,743,961.88

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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.