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Finding the Fourth Proportional to 3,441.92, 5,162.87 and 976.76

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Solution

The fourth proportional to 3,441.92, 5,162.87 and 976.76 is: 1,465.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,441.92 : 5,162.87 = 976.76 : x
  2. Step 2: Convert to fraction form
    3,441.92/5,162.87 = 976.76/x
  3. Step 3: Cross multiply
    3,441.92x = 5,162.87 × 976.76
  4. Step 4: Simplify right side
    3,441.92x = 5,042,875.40
  5. Step 5: Solve for x
    x = 5,042,875.40/3,441.92
  6. Step 6: Final answer
    x = 1,465.14

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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.