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Finding the Fourth Proportional to 1,484.76, 2,049.66 and 960.96

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Solution

The fourth proportional to 1,484.76, 2,049.66 and 960.96 is: 1,326.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,484.76 : 2,049.66 = 960.96 : x
  2. Step 2: Convert to fraction form
    1,484.76/2,049.66 = 960.96/x
  3. Step 3: Cross multiply
    1,484.76x = 2,049.66 × 960.96
  4. Step 4: Simplify right side
    1,484.76x = 1,969,641.27
  5. Step 5: Solve for x
    x = 1,969,641.27/1,484.76
  6. Step 6: Final answer
    x = 1,326.57

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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.