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Finding the Fourth Proportional to 1,749.71, 2,414.60 and 963.75

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Solution

The fourth proportional to 1,749.71, 2,414.60 and 963.75 is: 1,329.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,749.71 : 2,414.60 = 963.75 : x
  2. Step 2: Convert to fraction form
    1,749.71/2,414.60 = 963.75/x
  3. Step 3: Cross multiply
    1,749.71x = 2,414.60 × 963.75
  4. Step 4: Simplify right side
    1,749.71x = 2,327,065.93
  5. Step 5: Solve for x
    x = 2,327,065.93/1,749.71
  6. Step 6: Final answer
    x = 1,329.98

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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.