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Finding the Fourth Proportional to 482,856.30, 724,280.85 and 145,896.30

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Solution

The fourth proportional to 482,856.30, 724,280.85 and 145,896.30 is: 218,843.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,856.30 : 724,280.85 = 145,896.30 : x
  2. Step 2: Convert to fraction form
    482,856.30/724,280.85 = 145,896.30/x
  3. Step 3: Cross multiply
    482,856.30x = 724,280.85 × 145,896.30
  4. Step 4: Simplify right side
    482,856.30x = 105,669,896,175.86
  5. Step 5: Solve for x
    x = 105,669,896,175.86/482,856.30
  6. Step 6: Final answer
    x = 218,843.36

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1.5x scale

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.