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Finding the Fourth Proportional to 1,760.33, 2,429.21 and 963.63

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Solution

The fourth proportional to 1,760.33, 2,429.21 and 963.63 is: 1,329.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,760.33 : 2,429.21 = 963.63 : x
  2. Step 2: Convert to fraction form
    1,760.33/2,429.21 = 963.63/x
  3. Step 3: Cross multiply
    1,760.33x = 2,429.21 × 963.63
  4. Step 4: Simplify right side
    1,760.33x = 2,340,865.37
  5. Step 5: Solve for x
    x = 2,340,865.37/1,760.33
  6. Step 6: Final answer
    x = 1,329.79

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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.