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Finding the Fourth Proportional to 275,234.20, 413,240.10 and 170,258.20

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Solution

The fourth proportional to 275,234.20, 413,240.10 and 170,258.20 is: 255,627.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,234.20 : 413,240.10 = 170,258.20 : x
  2. Step 2: Convert to fraction form
    275,234.20/413,240.10 = 170,258.20/x
  3. Step 3: Cross multiply
    275,234.20x = 413,240.10 × 170,258.20
  4. Step 4: Simplify right side
    275,234.20x = 70,357,515,593.82
  5. Step 5: Solve for x
    x = 70,357,515,593.82/275,234.20
  6. Step 6: Final answer
    x = 255,627.81

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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.