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Finding the Fourth Proportional to 1,760.54, 2,429.20 and 974.44

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Solution

The fourth proportional to 1,760.54, 2,429.20 and 974.44 is: 1,344.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,760.54 : 2,429.20 = 974.44 : x
  2. Step 2: Convert to fraction form
    1,760.54/2,429.20 = 974.44/x
  3. Step 3: Cross multiply
    1,760.54x = 2,429.20 × 974.44
  4. Step 4: Simplify right side
    1,760.54x = 2,367,109.65
  5. Step 5: Solve for x
    x = 2,367,109.65/1,760.54
  6. Step 6: Final answer
    x = 1,344.54

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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.