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Finding the Fourth Proportional to 627,616.62, 866,107.69 and 341,138.25

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Solution

The fourth proportional to 627,616.62, 866,107.69 and 341,138.25 is: 470,769.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,616.62 : 866,107.69 = 341,138.25 : x
  2. Step 2: Convert to fraction form
    627,616.62/866,107.69 = 341,138.25/x
  3. Step 3: Cross multiply
    627,616.62x = 866,107.69 × 341,138.25
  4. Step 4: Simplify right side
    627,616.62x = 295,462,460,825.30
  5. Step 5: Solve for x
    x = 295,462,460,825.30/627,616.62
  6. Step 6: Final answer
    x = 470,769.02

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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.