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Finding the Fourth Proportional to 434,793.90, 652,190.85 and 185,961.90

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Solution

The fourth proportional to 434,793.90, 652,190.85 and 185,961.90 is: 278,942.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,793.90 : 652,190.85 = 185,961.90 : x
  2. Step 2: Convert to fraction form
    434,793.90/652,190.85 = 185,961.90/x
  3. Step 3: Cross multiply
    434,793.90x = 652,190.85 × 185,961.90
  4. Step 4: Simplify right side
    434,793.90x = 121,282,649,628.62
  5. Step 5: Solve for x
    x = 121,282,649,628.62/434,793.90
  6. Step 6: Final answer
    x = 278,942.85

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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.