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Finding the Fourth Proportional to 627,743.54, 866,249.30 and 341,261.12

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Solution

The fourth proportional to 627,743.54, 866,249.30 and 341,261.12 is: 470,920.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,743.54 : 866,249.30 = 341,261.12 : x
  2. Step 2: Convert to fraction form
    627,743.54/866,249.30 = 341,261.12/x
  3. Step 3: Cross multiply
    627,743.54x = 866,249.30 × 341,261.12
  4. Step 4: Simplify right side
    627,743.54x = 295,617,209,335.99
  5. Step 5: Solve for x
    x = 295,617,209,335.99/627,743.54
  6. Step 6: Final answer
    x = 470,920.35

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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.