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Finding the Fourth Proportional to 483,492.57, 724,989.70 and 217,024.69

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Solution

The fourth proportional to 483,492.57, 724,989.70 and 217,024.69 is: 325,425.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,492.57 : 724,989.70 = 217,024.69 : x
  2. Step 2: Convert to fraction form
    483,492.57/724,989.70 = 217,024.69/x
  3. Step 3: Cross multiply
    483,492.57x = 724,989.70 × 217,024.69
  4. Step 4: Simplify right side
    483,492.57x = 157,340,664,895.69
  5. Step 5: Solve for x
    x = 157,340,664,895.69/483,492.57
  6. Step 6: Final answer
    x = 325,425.20

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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.