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Finding the Fourth Proportional to 2,574.34, 3,861.99 and 844.18

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Solution

The fourth proportional to 2,574.34, 3,861.99 and 844.18 is: 1,266.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,574.34 : 3,861.99 = 844.18 : x
  2. Step 2: Convert to fraction form
    2,574.34/3,861.99 = 844.18/x
  3. Step 3: Cross multiply
    2,574.34x = 3,861.99 × 844.18
  4. Step 4: Simplify right side
    2,574.34x = 3,260,214.72
  5. Step 5: Solve for x
    x = 3,260,214.72/2,574.34
  6. Step 6: Final answer
    x = 1,266.43

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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.