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Finding the Fourth Proportional to 447,898.42, 618,099.78 and 246,694.42

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Solution

The fourth proportional to 447,898.42, 618,099.78 and 246,694.42 is: 340,438.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,898.42 : 618,099.78 = 246,694.42 : x
  2. Step 2: Convert to fraction form
    447,898.42/618,099.78 = 246,694.42/x
  3. Step 3: Cross multiply
    447,898.42x = 618,099.78 × 246,694.42
  4. Step 4: Simplify right side
    447,898.42x = 152,481,766,729.23
  5. Step 5: Solve for x
    x = 152,481,766,729.23/447,898.42
  6. Step 6: Final answer
    x = 340,438.28

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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.