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Finding the Fourth Proportional to 331,692.20, 496,991.10 and 191,205.80

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Solution

The fourth proportional to 331,692.20, 496,991.10 and 191,205.80 is: 286,493.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,692.20 : 496,991.10 = 191,205.80 : x
  2. Step 2: Convert to fraction form
    331,692.20/496,991.10 = 191,205.80/x
  3. Step 3: Cross multiply
    331,692.20x = 496,991.10 × 191,205.80
  4. Step 4: Simplify right side
    331,692.20x = 95,027,580,868.38
  5. Step 5: Solve for x
    x = 95,027,580,868.38/331,692.20
  6. Step 6: Final answer
    x = 286,493.26

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1.5x scale

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.