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Finding the Fourth Proportional to 422,520.87, 633,354.84 and 264,860.04

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Solution

The fourth proportional to 422,520.87, 633,354.84 and 264,860.04 is: 397,022.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,520.87 : 633,354.84 = 264,860.04 : x
  2. Step 2: Convert to fraction form
    422,520.87/633,354.84 = 264,860.04/x
  3. Step 3: Cross multiply
    422,520.87x = 633,354.84 × 264,860.04
  4. Step 4: Simplify right side
    422,520.87x = 167,750,388,256.59
  5. Step 5: Solve for x
    x = 167,750,388,256.59/422,520.87
  6. Step 6: Final answer
    x = 397,022.73

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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.