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Finding the Fourth Proportional to 325,845.40, 488,832.90 and 273,616.60

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Solution

The fourth proportional to 325,845.40, 488,832.90 and 273,616.60 is: 410,479.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,845.40 : 488,832.90 = 273,616.60 : x
  2. Step 2: Convert to fraction form
    325,845.40/488,832.90 = 273,616.60/x
  3. Step 3: Cross multiply
    325,845.40x = 488,832.90 × 273,616.60
  4. Step 4: Simplify right side
    325,845.40x = 133,752,796,066.14
  5. Step 5: Solve for x
    x = 133,752,796,066.14/325,845.40
  6. Step 6: Final answer
    x = 410,479.31

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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.