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Finding the Fourth Proportional to 627,777.60, 941,320.80 and 206,836.80

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Solution

The fourth proportional to 627,777.60, 941,320.80 and 206,836.80 is: 310,141.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,777.60 : 941,320.80 = 206,836.80 : x
  2. Step 2: Convert to fraction form
    627,777.60/941,320.80 = 206,836.80/x
  3. Step 3: Cross multiply
    627,777.60x = 941,320.80 × 206,836.80
  4. Step 4: Simplify right side
    627,777.60x = 194,699,782,045.44
  5. Step 5: Solve for x
    x = 194,699,782,045.44/627,777.60
  6. Step 6: Final answer
    x = 310,141.33

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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.