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Finding the Fourth Proportional to 653,974.40, 980,850.90 and 180,661.14

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Solution

The fourth proportional to 653,974.40, 980,850.90 and 180,661.14 is: 270,961.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,974.40 : 980,850.90 = 180,661.14 : x
  2. Step 2: Convert to fraction form
    653,974.40/980,850.90 = 180,661.14/x
  3. Step 3: Cross multiply
    653,974.40x = 980,850.90 × 180,661.14
  4. Step 4: Simplify right side
    653,974.40x = 177,201,641,764.03
  5. Step 5: Solve for x
    x = 177,201,641,764.03/653,974.40
  6. Step 6: Final answer
    x = 270,961.13

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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.