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Finding the Fourth Proportional to 325,914.72, 489,620.56 and 230,072.32

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Solution

The fourth proportional to 325,914.72, 489,620.56 and 230,072.32 is: 345,636.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,914.72 : 489,620.56 = 230,072.32 : x
  2. Step 2: Convert to fraction form
    325,914.72/489,620.56 = 230,072.32/x
  3. Step 3: Cross multiply
    325,914.72x = 489,620.56 × 230,072.32
  4. Step 4: Simplify right side
    325,914.72x = 112,648,138,158.90
  5. Step 5: Solve for x
    x = 112,648,138,158.90/325,914.72
  6. Step 6: Final answer
    x = 345,636.85

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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.