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Finding the Fourth Proportional to 416,387.37, 624,487.62 and 191,531.85

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Solution

The fourth proportional to 416,387.37, 624,487.62 and 191,531.85 is: 287,254.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,387.37 : 624,487.62 = 191,531.85 : x
  2. Step 2: Convert to fraction form
    416,387.37/624,487.62 = 191,531.85/x
  3. Step 3: Cross multiply
    416,387.37x = 624,487.62 × 191,531.85
  4. Step 4: Simplify right side
    416,387.37x = 119,609,269,160.70
  5. Step 5: Solve for x
    x = 119,609,269,160.70/416,387.37
  6. Step 6: Final answer
    x = 287,254.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.