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Finding the Fourth Proportional to 322,819.60, 483,922.20 and 251,702.80

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Solution

The fourth proportional to 322,819.60, 483,922.20 and 251,702.80 is: 377,314.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,819.60 : 483,922.20 = 251,702.80 : x
  2. Step 2: Convert to fraction form
    322,819.60/483,922.20 = 251,702.80/x
  3. Step 3: Cross multiply
    322,819.60x = 483,922.20 × 251,702.80
  4. Step 4: Simplify right side
    322,819.60x = 121,804,572,722.16
  5. Step 5: Solve for x
    x = 121,804,572,722.16/322,819.60
  6. Step 6: Final answer
    x = 377,314.68

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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.