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Finding the Fourth Proportional to 482,859.20, 724,288.80 and 234,027.20

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Solution

The fourth proportional to 482,859.20, 724,288.80 and 234,027.20 is: 351,040.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,859.20 : 724,288.80 = 234,027.20 : x
  2. Step 2: Convert to fraction form
    482,859.20/724,288.80 = 234,027.20/x
  3. Step 3: Cross multiply
    482,859.20x = 724,288.80 × 234,027.20
  4. Step 4: Simplify right side
    482,859.20x = 169,503,279,855.36
  5. Step 5: Solve for x
    x = 169,503,279,855.36/482,859.20
  6. Step 6: Final answer
    x = 351,040.80

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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.