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Finding the Fourth Proportional to 624,448.85, 861,739.16 and 337,968.86

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Solution

The fourth proportional to 624,448.85, 861,739.16 and 337,968.86 is: 466,396.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,448.85 : 861,739.16 = 337,968.86 : x
  2. Step 2: Convert to fraction form
    624,448.85/861,739.16 = 337,968.86/x
  3. Step 3: Cross multiply
    624,448.85x = 861,739.16 × 337,968.86
  4. Step 4: Simplify right side
    624,448.85x = 291,240,995,524.02
  5. Step 5: Solve for x
    x = 291,240,995,524.02/624,448.85
  6. Step 6: Final answer
    x = 466,396.88

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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.