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Finding the Fourth Proportional to 627,768.39, 866,330.24 and 341,289.57

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Solution

The fourth proportional to 627,768.39, 866,330.24 and 341,289.57 is: 470,984.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,768.39 : 866,330.24 = 341,289.57 : x
  2. Step 2: Convert to fraction form
    627,768.39/866,330.24 = 341,289.57/x
  3. Step 3: Cross multiply
    627,768.39x = 866,330.24 × 341,289.57
  4. Step 4: Simplify right side
    627,768.39x = 295,669,475,087.60
  5. Step 5: Solve for x
    x = 295,669,475,087.60/627,768.39
  6. Step 6: Final answer
    x = 470,984.97

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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.