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Finding the Fourth Proportional to 2,664.99, 3,997.44 and 717.39

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Solution

The fourth proportional to 2,664.99, 3,997.44 and 717.39 is: 1,076.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664.99 : 3,997.44 = 717.39 : x
  2. Step 2: Convert to fraction form
    2,664.99/3,997.44 = 717.39/x
  3. Step 3: Cross multiply
    2,664.99x = 3,997.44 × 717.39
  4. Step 4: Simplify right side
    2,664.99x = 2,867,723.48
  5. Step 5: Solve for x
    x = 2,867,723.48/2,664.99
  6. Step 6: Final answer
    x = 1,076.07

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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.