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Finding the Fourth Proportional to 483,446.24, 724,920.36 and 216,978.32

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Solution

The fourth proportional to 483,446.24, 724,920.36 and 216,978.32 is: 325,355.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,446.24 : 724,920.36 = 216,978.32 : x
  2. Step 2: Convert to fraction form
    483,446.24/724,920.36 = 216,978.32/x
  3. Step 3: Cross multiply
    483,446.24x = 724,920.36 × 216,978.32
  4. Step 4: Simplify right side
    483,446.24x = 157,292,004,472.57
  5. Step 5: Solve for x
    x = 157,292,004,472.57/483,446.24
  6. Step 6: Final answer
    x = 325,355.73

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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.