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Finding the Fourth Proportional to 626,198.58, 863,620.50 and 481,354.92

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Solution

The fourth proportional to 626,198.58, 863,620.50 and 481,354.92 is: 663,859.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,198.58 : 863,620.50 = 481,354.92 : x
  2. Step 2: Convert to fraction form
    626,198.58/863,620.50 = 481,354.92/x
  3. Step 3: Cross multiply
    626,198.58x = 863,620.50 × 481,354.92
  4. Step 4: Simplify right side
    626,198.58x = 415,707,976,687.86
  5. Step 5: Solve for x
    x = 415,707,976,687.86/626,198.58
  6. Step 6: Final answer
    x = 663,859.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.