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Finding the Fourth Proportional to 276,670.20, 415,394.10 and 171,694.20

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Solution

The fourth proportional to 276,670.20, 415,394.10 and 171,694.20 is: 257,782.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,670.20 : 415,394.10 = 171,694.20 : x
  2. Step 2: Convert to fraction form
    276,670.20/415,394.10 = 171,694.20/x
  3. Step 3: Cross multiply
    276,670.20x = 415,394.10 × 171,694.20
  4. Step 4: Simplify right side
    276,670.20x = 71,320,757,684.22
  5. Step 5: Solve for x
    x = 71,320,757,684.22/276,670.20
  6. Step 6: Final answer
    x = 257,782.58

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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.