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Finding the Fourth Proportional to 4,442,758.92, 6,664,396.72 and 1,248,134.21

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Solution

The fourth proportional to 4,442,758.92, 6,664,396.72 and 1,248,134.21 is: 1,872,273.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,442,758.92 : 6,664,396.72 = 1,248,134.21 : x
  2. Step 2: Convert to fraction form
    4,442,758.92/6,664,396.72 = 1,248,134.21/x
  3. Step 3: Cross multiply
    4,442,758.92x = 6,664,396.72 × 1,248,134.21
  4. Step 4: Simplify right side
    4,442,758.92x = 8,318,061,528,473.46
  5. Step 5: Solve for x
    x = 8,318,061,528,473.46/4,442,758.92
  6. Step 6: Final answer
    x = 1,872,273.89

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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.