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Finding the Fourth Proportional to 483,856.60, 724,910.10 and 413,872.60

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Solution

The fourth proportional to 483,856.60, 724,910.10 and 413,872.60 is: 620,060.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,856.60 : 724,910.10 = 413,872.60 : x
  2. Step 2: Convert to fraction form
    483,856.60/724,910.10 = 413,872.60/x
  3. Step 3: Cross multiply
    483,856.60x = 724,910.10 × 413,872.60
  4. Step 4: Simplify right side
    483,856.60x = 300,020,427,853.26
  5. Step 5: Solve for x
    x = 300,020,427,853.26/483,856.60
  6. Step 6: Final answer
    x = 620,060.63

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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.