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Finding the Fourth Proportional to 416,829.20, 625,243.80 and 195,645.20

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Solution

The fourth proportional to 416,829.20, 625,243.80 and 195,645.20 is: 293,467.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,829.20 : 625,243.80 = 195,645.20 : x
  2. Step 2: Convert to fraction form
    416,829.20/625,243.80 = 195,645.20/x
  3. Step 3: Cross multiply
    416,829.20x = 625,243.80 × 195,645.20
  4. Step 4: Simplify right side
    416,829.20x = 122,325,948,299.76
  5. Step 5: Solve for x
    x = 122,325,948,299.76/416,829.20
  6. Step 6: Final answer
    x = 293,467.80

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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.