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Finding the Fourth Proportional to 548,692.80, 768,694.80 and 548,692.80

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Solution

The fourth proportional to 548,692.80, 768,694.80 and 548,692.80 is: 768,694.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,692.80 : 768,694.80 = 548,692.80 : x
  2. Step 2: Convert to fraction form
    548,692.80/768,694.80 = 548,692.80/x
  3. Step 3: Cross multiply
    548,692.80x = 768,694.80 × 548,692.80
  4. Step 4: Simplify right side
    548,692.80x = 421,777,302,157.44
  5. Step 5: Solve for x
    x = 421,777,302,157.44/548,692.80
  6. Step 6: Final answer
    x = 768,694.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.