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Finding the Fourth Proportional to 447,985.44, 618,190.56 and 246,781.44

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Solution

The fourth proportional to 447,985.44, 618,190.56 and 246,781.44 is: 340,542.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,985.44 : 618,190.56 = 246,781.44 : x
  2. Step 2: Convert to fraction form
    447,985.44/618,190.56 = 246,781.44/x
  3. Step 3: Cross multiply
    447,985.44x = 618,190.56 × 246,781.44
  4. Step 4: Simplify right side
    447,985.44x = 152,557,956,591.21
  5. Step 5: Solve for x
    x = 152,557,956,591.21/447,985.44
  6. Step 6: Final answer
    x = 340,542.22

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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.