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Finding the Fourth Proportional to 624,572.85, 936,285.21 and 225,115.86

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Solution

The fourth proportional to 624,572.85, 936,285.21 and 225,115.86 is: 337,466.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,572.85 : 936,285.21 = 225,115.86 : x
  2. Step 2: Convert to fraction form
    624,572.85/936,285.21 = 225,115.86/x
  3. Step 3: Cross multiply
    624,572.85x = 936,285.21 × 225,115.86
  4. Step 4: Simplify right side
    624,572.85x = 210,772,650,254.43
  5. Step 5: Solve for x
    x = 210,772,650,254.43/624,572.85
  6. Step 6: Final answer
    x = 337,466.88

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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.