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Finding the Fourth Proportional to 737,764.80, 1,106,647.20 and 663,115.20

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Solution

The fourth proportional to 737,764.80, 1,106,647.20 and 663,115.20 is: 994,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,764.80 : 1,106,647.20 = 663,115.20 : x
  2. Step 2: Convert to fraction form
    737,764.80/1,106,647.20 = 663,115.20/x
  3. Step 3: Cross multiply
    737,764.80x = 1,106,647.20 × 663,115.20
  4. Step 4: Simplify right side
    737,764.80x = 733,834,579,357.44
  5. Step 5: Solve for x
    x = 733,834,579,357.44/737,764.80
  6. Step 6: Final answer
    x = 994,672.80

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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.