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Finding the Fourth Proportional to 627,634.60, 941,408.70 and 201,164.20

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Solution

The fourth proportional to 627,634.60, 941,408.70 and 201,164.20 is: 301,732.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,634.60 : 941,408.70 = 201,164.20 : x
  2. Step 2: Convert to fraction form
    627,634.60/941,408.70 = 201,164.20/x
  3. Step 3: Cross multiply
    627,634.60x = 941,408.70 × 201,164.20
  4. Step 4: Simplify right side
    627,634.60x = 189,377,728,008.54
  5. Step 5: Solve for x
    x = 189,377,728,008.54/627,634.60
  6. Step 6: Final answer
    x = 301,732.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.