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Finding the Fourth Proportional to 325,635.10, 488,452.65 and 225,907.90

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Solution

The fourth proportional to 325,635.10, 488,452.65 and 225,907.90 is: 338,861.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,635.10 : 488,452.65 = 225,907.90 : x
  2. Step 2: Convert to fraction form
    325,635.10/488,452.65 = 225,907.90/x
  3. Step 3: Cross multiply
    325,635.10x = 488,452.65 × 225,907.90
  4. Step 4: Simplify right side
    325,635.10x = 110,345,312,410.94
  5. Step 5: Solve for x
    x = 110,345,312,410.94/325,635.10
  6. Step 6: Final answer
    x = 338,861.85

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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.