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Finding the Fourth Proportional to 2,343.81, 3,234.22 and 1,348.90

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Solution

The fourth proportional to 2,343.81, 3,234.22 and 1,348.90 is: 1,861.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,343.81 : 3,234.22 = 1,348.90 : x
  2. Step 2: Convert to fraction form
    2,343.81/3,234.22 = 1,348.90/x
  3. Step 3: Cross multiply
    2,343.81x = 3,234.22 × 1,348.90
  4. Step 4: Simplify right side
    2,343.81x = 4,362,616.44
  5. Step 5: Solve for x
    x = 4,362,616.44/2,343.81
  6. Step 6: Final answer
    x = 1,861.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.