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Finding the Fourth Proportional to 482,857.70, 724,111.58 and 216,481.10

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Solution

The fourth proportional to 482,857.70, 724,111.58 and 216,481.10 is: 324,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,857.70 : 724,111.58 = 216,481.10 : x
  2. Step 2: Convert to fraction form
    482,857.70/724,111.58 = 216,481.10/x
  3. Step 3: Cross multiply
    482,857.70x = 724,111.58 × 216,481.10
  4. Step 4: Simplify right side
    482,857.70x = 156,756,466,658.18
  5. Step 5: Solve for x
    x = 156,756,466,658.18/482,857.70
  6. Step 6: Final answer
    x = 324,643.20

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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.