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Finding the Fourth Proportional to 367,938.60, 550,595.70 and 255,089.40

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Solution

The fourth proportional to 367,938.60, 550,595.70 and 255,089.40 is: 381,724.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,938.60 : 550,595.70 = 255,089.40 : x
  2. Step 2: Convert to fraction form
    367,938.60/550,595.70 = 255,089.40/x
  3. Step 3: Cross multiply
    367,938.60x = 550,595.70 × 255,089.40
  4. Step 4: Simplify right side
    367,938.60x = 140,451,126,755.58
  5. Step 5: Solve for x
    x = 140,451,126,755.58/367,938.60
  6. Step 6: Final answer
    x = 381,724.36

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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.