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Finding the Fourth Proportional to 624,051.72, 861,190.79 and 337,571.15

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Solution

The fourth proportional to 624,051.72, 861,190.79 and 337,571.15 is: 465,847.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,051.72 : 861,190.79 = 337,571.15 : x
  2. Step 2: Convert to fraction form
    624,051.72/861,190.79 = 337,571.15/x
  3. Step 3: Cross multiply
    624,051.72x = 861,190.79 × 337,571.15
  4. Step 4: Simplify right side
    624,051.72x = 290,713,159,355.90
  5. Step 5: Solve for x
    x = 290,713,159,355.90/624,051.72
  6. Step 6: Final answer
    x = 465,847.86

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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.