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Finding the Fourth Proportional to 627,738.40, 866,260.20 and 341,251.12

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Solution

The fourth proportional to 627,738.40, 866,260.20 and 341,251.12 is: 470,916.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,738.40 : 866,260.20 = 341,251.12 : x
  2. Step 2: Convert to fraction form
    627,738.40/866,260.20 = 341,251.12/x
  3. Step 3: Cross multiply
    627,738.40x = 866,260.20 × 341,251.12
  4. Step 4: Simplify right side
    627,738.40x = 295,612,263,461.42
  5. Step 5: Solve for x
    x = 295,612,263,461.42/627,738.40
  6. Step 6: Final answer
    x = 470,916.33

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.