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Finding the Fourth Proportional to 3,460.08, 5,190.12 and 994.44

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Solution

The fourth proportional to 3,460.08, 5,190.12 and 994.44 is: 1,491.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,460.08 : 5,190.12 = 994.44 : x
  2. Step 2: Convert to fraction form
    3,460.08/5,190.12 = 994.44/x
  3. Step 3: Cross multiply
    3,460.08x = 5,190.12 × 994.44
  4. Step 4: Simplify right side
    3,460.08x = 5,161,262.93
  5. Step 5: Solve for x
    x = 5,161,262.93/3,460.08
  6. Step 6: Final answer
    x = 1,491.66

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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.