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Finding the Fourth Proportional to 627,956.40, 941,992.20 and 207,233.20

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Solution

The fourth proportional to 627,956.40, 941,992.20 and 207,233.20 is: 310,868.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,956.40 : 941,992.20 = 207,233.20 : x
  2. Step 2: Convert to fraction form
    627,956.40/941,992.20 = 207,233.20/x
  3. Step 3: Cross multiply
    627,956.40x = 941,992.20 × 207,233.20
  4. Step 4: Simplify right side
    627,956.40x = 195,212,057,981.04
  5. Step 5: Solve for x
    x = 195,212,057,981.04/627,956.40
  6. Step 6: Final answer
    x = 310,868.81

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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.