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Finding the Fourth Proportional to 2,941.45, 4,412.17 and 993.62

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Solution

The fourth proportional to 2,941.45, 4,412.17 and 993.62 is: 1,490.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,941.45 : 4,412.17 = 993.62 : x
  2. Step 2: Convert to fraction form
    2,941.45/4,412.17 = 993.62/x
  3. Step 3: Cross multiply
    2,941.45x = 4,412.17 × 993.62
  4. Step 4: Simplify right side
    2,941.45x = 4,384,028.90
  5. Step 5: Solve for x
    x = 4,384,028.90/2,941.45
  6. Step 6: Final answer
    x = 1,490.43

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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.