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Finding the Fourth Proportional to 482,563.20, 724,305.60 and 412,521.60

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Solution

The fourth proportional to 482,563.20, 724,305.60 and 412,521.60 is: 619,176.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,563.20 : 724,305.60 = 412,521.60 : x
  2. Step 2: Convert to fraction form
    482,563.20/724,305.60 = 412,521.60/x
  3. Step 3: Cross multiply
    482,563.20x = 724,305.60 × 412,521.60
  4. Step 4: Simplify right side
    482,563.20x = 298,791,705,000.96
  5. Step 5: Solve for x
    x = 298,791,705,000.96/482,563.20
  6. Step 6: Final answer
    x = 619,176.32

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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.