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Finding the Fourth Proportional to 609,556.20, 914,771.70 and 343,033.80

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Solution

The fourth proportional to 609,556.20, 914,771.70 and 343,033.80 is: 514,796.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,556.20 : 914,771.70 = 343,033.80 : x
  2. Step 2: Convert to fraction form
    609,556.20/914,771.70 = 343,033.80/x
  3. Step 3: Cross multiply
    609,556.20x = 914,771.70 × 343,033.80
  4. Step 4: Simplify right side
    609,556.20x = 313,797,612,383.46
  5. Step 5: Solve for x
    x = 313,797,612,383.46/609,556.20
  6. Step 6: Final answer
    x = 514,796.85

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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.