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Finding the Fourth Proportional to 627,812.60, 941,373.30 and 206,871.80

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Solution

The fourth proportional to 627,812.60, 941,373.30 and 206,871.80 is: 310,193.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,812.60 : 941,373.30 = 206,871.80 : x
  2. Step 2: Convert to fraction form
    627,812.60/941,373.30 = 206,871.80/x
  3. Step 3: Cross multiply
    627,812.60x = 941,373.30 × 206,871.80
  4. Step 4: Simplify right side
    627,812.60x = 194,743,589,042.94
  5. Step 5: Solve for x
    x = 194,743,589,042.94/627,812.60
  6. Step 6: Final answer
    x = 310,193.82

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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.