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Finding the Fourth Proportional to 3,899,956.73, 5,837,674.22 and 2,678,380.54

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Solution

The fourth proportional to 3,899,956.73, 5,837,674.22 and 2,678,380.54 is: 4,009,150.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899,956.73 : 5,837,674.22 = 2,678,380.54 : x
  2. Step 2: Convert to fraction form
    3,899,956.73/5,837,674.22 = 2,678,380.54/x
  3. Step 3: Cross multiply
    3,899,956.73x = 5,837,674.22 × 2,678,380.54
  4. Step 4: Simplify right side
    3,899,956.73x = 15,635,513,011,765.52
  5. Step 5: Solve for x
    x = 15,635,513,011,765.52/3,899,956.73
  6. Step 6: Final answer
    x = 4,009,150.39

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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.