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Finding the Fourth Proportional to 447,913.62, 618,120.78 and 246,709.62

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Solution

The fourth proportional to 447,913.62, 618,120.78 and 246,709.62 is: 340,459.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,913.62 : 618,120.78 = 246,709.62 : x
  2. Step 2: Convert to fraction form
    447,913.62/618,120.78 = 246,709.62/x
  3. Step 3: Cross multiply
    447,913.62x = 618,120.78 × 246,709.62
  4. Step 4: Simplify right side
    447,913.62x = 152,496,342,747.90
  5. Step 5: Solve for x
    x = 152,496,342,747.90/447,913.62
  6. Step 6: Final answer
    x = 340,459.27

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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.