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Finding the Fourth Proportional to 1,757.95, 2,425.49 and 1,226.26

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Solution

The fourth proportional to 1,757.95, 2,425.49 and 1,226.26 is: 1,691.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,757.95 : 2,425.49 = 1,226.26 : x
  2. Step 2: Convert to fraction form
    1,757.95/2,425.49 = 1,226.26/x
  3. Step 3: Cross multiply
    1,757.95x = 2,425.49 × 1,226.26
  4. Step 4: Simplify right side
    1,757.95x = 2,974,275.24
  5. Step 5: Solve for x
    x = 2,974,275.24/1,757.95
  6. Step 6: Final answer
    x = 1,691.90

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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.