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Finding the Fourth Proportional to 325,633.60, 488,450.40 and 225,906.40

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Solution

The fourth proportional to 325,633.60, 488,450.40 and 225,906.40 is: 338,859.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,633.60 : 488,450.40 = 225,906.40 : x
  2. Step 2: Convert to fraction form
    325,633.60/488,450.40 = 225,906.40/x
  3. Step 3: Cross multiply
    325,633.60x = 488,450.40 × 225,906.40
  4. Step 4: Simplify right side
    325,633.60x = 110,344,071,442.56
  5. Step 5: Solve for x
    x = 110,344,071,442.56/325,633.60
  6. Step 6: Final answer
    x = 338,859.60

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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.