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Finding the Fourth Proportional to 2,326.64, 3,490.39 and 766.73

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Solution

The fourth proportional to 2,326.64, 3,490.39 and 766.73 is: 1,150.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,326.64 : 3,490.39 = 766.73 : x
  2. Step 2: Convert to fraction form
    2,326.64/3,490.39 = 766.73/x
  3. Step 3: Cross multiply
    2,326.64x = 3,490.39 × 766.73
  4. Step 4: Simplify right side
    2,326.64x = 2,676,186.72
  5. Step 5: Solve for x
    x = 2,676,186.72/2,326.64
  6. Step 6: Final answer
    x = 1,150.24

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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.