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Finding the Fourth Proportional to 664,375.20, 996,271.20 and 264,883.20

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Solution

The fourth proportional to 664,375.20, 996,271.20 and 264,883.20 is: 397,208.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,375.20 : 996,271.20 = 264,883.20 : x
  2. Step 2: Convert to fraction form
    664,375.20/996,271.20 = 264,883.20/x
  3. Step 3: Cross multiply
    664,375.20x = 996,271.20 × 264,883.20
  4. Step 4: Simplify right side
    664,375.20x = 263,895,503,523.84
  5. Step 5: Solve for x
    x = 263,895,503,523.84/664,375.20
  6. Step 6: Final answer
    x = 397,208.54

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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.