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Finding the Fourth Proportional to 609,859.20, 914,788.80 and 410,793.60

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Solution

The fourth proportional to 609,859.20, 914,788.80 and 410,793.60 is: 616,190.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,859.20 : 914,788.80 = 410,793.60 : x
  2. Step 2: Convert to fraction form
    609,859.20/914,788.80 = 410,793.60/x
  3. Step 3: Cross multiply
    609,859.20x = 914,788.80 × 410,793.60
  4. Step 4: Simplify right side
    609,859.20x = 375,789,384,391.68
  5. Step 5: Solve for x
    x = 375,789,384,391.68/609,859.20
  6. Step 6: Final answer
    x = 616,190.40

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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.