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Finding the Fourth Proportional to 627,693.60, 941,497.20 and 201,223.20

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Solution

The fourth proportional to 627,693.60, 941,497.20 and 201,223.20 is: 301,820.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,693.60 : 941,497.20 = 201,223.20 : x
  2. Step 2: Convert to fraction form
    627,693.60/941,497.20 = 201,223.20/x
  3. Step 3: Cross multiply
    627,693.60x = 941,497.20 × 201,223.20
  4. Step 4: Simplify right side
    627,693.60x = 189,451,079,375.04
  5. Step 5: Solve for x
    x = 189,451,079,375.04/627,693.60
  6. Step 6: Final answer
    x = 301,820.95

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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.