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Finding the Fourth Proportional to 624,553.85, 936,690.59 and 287,270.52

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Solution

The fourth proportional to 624,553.85, 936,690.59 and 287,270.52 is: 430,841.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,553.85 : 936,690.59 = 287,270.52 : x
  2. Step 2: Convert to fraction form
    624,553.85/936,690.59 = 287,270.52/x
  3. Step 3: Cross multiply
    624,553.85x = 936,690.59 × 287,270.52
  4. Step 4: Simplify right side
    624,553.85x = 269,083,591,432.05
  5. Step 5: Solve for x
    x = 269,083,591,432.05/624,553.85
  6. Step 6: Final answer
    x = 430,841.30

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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.