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Finding the Fourth Proportional to 395,195.20, 591,043.20 and 332,209.60

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Solution

The fourth proportional to 395,195.20, 591,043.20 and 332,209.60 is: 496,843.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,195.20 : 591,043.20 = 332,209.60 : x
  2. Step 2: Convert to fraction form
    395,195.20/591,043.20 = 332,209.60/x
  3. Step 3: Cross multiply
    395,195.20x = 591,043.20 × 332,209.60
  4. Step 4: Simplify right side
    395,195.20x = 196,350,225,054.72
  5. Step 5: Solve for x
    x = 196,350,225,054.72/395,195.20
  6. Step 6: Final answer
    x = 496,843.65

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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.