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Finding the Fourth Proportional to 347,760.20, 522,029.10 and 269,222.60

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Solution

The fourth proportional to 347,760.20, 522,029.10 and 269,222.60 is: 404,134.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,760.20 : 522,029.10 = 269,222.60 : x
  2. Step 2: Convert to fraction form
    347,760.20/522,029.10 = 269,222.60/x
  3. Step 3: Cross multiply
    347,760.20x = 522,029.10 × 269,222.60
  4. Step 4: Simplify right side
    347,760.20x = 140,542,031,577.66
  5. Step 5: Solve for x
    x = 140,542,031,577.66/347,760.20
  6. Step 6: Final answer
    x = 404,134.89

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1.5x scale

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.