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Finding the Fourth Proportional to 425,993.92, 587,900.64 and 247,145.92

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Solution

The fourth proportional to 425,993.92, 587,900.64 and 247,145.92 is: 341,078.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,993.92 : 587,900.64 = 247,145.92 : x
  2. Step 2: Convert to fraction form
    425,993.92/587,900.64 = 247,145.92/x
  3. Step 3: Cross multiply
    425,993.92x = 587,900.64 × 247,145.92
  4. Step 4: Simplify right side
    425,993.92x = 145,297,244,541.39
  5. Step 5: Solve for x
    x = 145,297,244,541.39/425,993.92
  6. Step 6: Final answer
    x = 341,078.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.