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Finding the Fourth Proportional to 627,723.45, 866,248.16 and 341,250.75

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Solution

The fourth proportional to 627,723.45, 866,248.16 and 341,250.75 is: 470,920.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,723.45 : 866,248.16 = 341,250.75 : x
  2. Step 2: Convert to fraction form
    627,723.45/866,248.16 = 341,250.75/x
  3. Step 3: Cross multiply
    627,723.45x = 866,248.16 × 341,250.75
  4. Step 4: Simplify right side
    627,723.45x = 295,607,832,579.87
  5. Step 5: Solve for x
    x = 295,607,832,579.87/627,723.45
  6. Step 6: Final answer
    x = 470,920.49

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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.