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Finding the Fourth Proportional to 627,765.39, 866,326.10 and 341,286.57

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Solution

The fourth proportional to 627,765.39, 866,326.10 and 341,286.57 is: 470,980.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,765.39 : 866,326.10 = 341,286.57 : x
  2. Step 2: Convert to fraction form
    627,765.39/866,326.10 = 341,286.57/x
  3. Step 3: Cross multiply
    627,765.39x = 866,326.10 × 341,286.57
  4. Step 4: Simplify right side
    627,765.39x = 295,665,461,464.04
  5. Step 5: Solve for x
    x = 295,665,461,464.04/627,765.39
  6. Step 6: Final answer
    x = 470,980.83

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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.