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Finding the Fourth Proportional to 2,331.37, 3,496.22 and 771.09

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Solution

The fourth proportional to 2,331.37, 3,496.22 and 771.09 is: 1,156.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331.37 : 3,496.22 = 771.09 : x
  2. Step 2: Convert to fraction form
    2,331.37/3,496.22 = 771.09/x
  3. Step 3: Cross multiply
    2,331.37x = 3,496.22 × 771.09
  4. Step 4: Simplify right side
    2,331.37x = 2,695,900.28
  5. Step 5: Solve for x
    x = 2,695,900.28/2,331.37
  6. Step 6: Final answer
    x = 1,156.36

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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.