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Finding the Fourth Proportional to 3,936,758.87, 5,905,138.37 and 944,942.87

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Solution

The fourth proportional to 3,936,758.87, 5,905,138.37 and 944,942.87 is: 1,417,414.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936,758.87 : 5,905,138.37 = 944,942.87 : x
  2. Step 2: Convert to fraction form
    3,936,758.87/5,905,138.37 = 944,942.87/x
  3. Step 3: Cross multiply
    3,936,758.87x = 5,905,138.37 × 944,942.87
  4. Step 4: Simplify right side
    3,936,758.87x = 5,580,018,364,844.52
  5. Step 5: Solve for x
    x = 5,580,018,364,844.52/3,936,758.87
  6. Step 6: Final answer
    x = 1,417,414.31

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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.