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Finding the Fourth Proportional to 3,049.26, 4,573.89 and 740.76

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Solution

The fourth proportional to 3,049.26, 4,573.89 and 740.76 is: 1,111.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,049.26 : 4,573.89 = 740.76 : x
  2. Step 2: Convert to fraction form
    3,049.26/4,573.89 = 740.76/x
  3. Step 3: Cross multiply
    3,049.26x = 4,573.89 × 740.76
  4. Step 4: Simplify right side
    3,049.26x = 3,388,163.33
  5. Step 5: Solve for x
    x = 3,388,163.33/3,049.26
  6. Step 6: Final answer
    x = 1,111.14

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Half scale
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Double scale
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Similar ratio
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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.