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Finding the Fourth Proportional to 408,662.25, 612,987.20 and 183,863.94

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Solution

The fourth proportional to 408,662.25, 612,987.20 and 183,863.94 is: 275,793.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,662.25 : 612,987.20 = 183,863.94 : x
  2. Step 2: Convert to fraction form
    408,662.25/612,987.20 = 183,863.94/x
  3. Step 3: Cross multiply
    408,662.25x = 612,987.20 × 183,863.94
  4. Step 4: Simplify right side
    408,662.25x = 112,706,241,761.57
  5. Step 5: Solve for x
    x = 112,706,241,761.57/408,662.25
  6. Step 6: Final answer
    x = 275,793.13

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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.