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Finding the Fourth Proportional to 367,930.60, 550,583.70 and 255,081.40

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Solution

The fourth proportional to 367,930.60, 550,583.70 and 255,081.40 is: 381,712.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,930.60 : 550,583.70 = 255,081.40 : x
  2. Step 2: Convert to fraction form
    367,930.60/550,583.70 = 255,081.40/x
  3. Step 3: Cross multiply
    367,930.60x = 550,583.70 × 255,081.40
  4. Step 4: Simplify right side
    367,930.60x = 140,443,661,013.18
  5. Step 5: Solve for x
    x = 140,443,661,013.18/367,930.60
  6. Step 6: Final answer
    x = 381,712.37

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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.