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Finding the Fourth Proportional to 489,039.10, 733,522.20 and 204,656.20

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Solution

The fourth proportional to 489,039.10, 733,522.20 and 204,656.20 is: 306,969.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,039.10 : 733,522.20 = 204,656.20 : x
  2. Step 2: Convert to fraction form
    489,039.10/733,522.20 = 204,656.20/x
  3. Step 3: Cross multiply
    489,039.10x = 733,522.20 × 204,656.20
  4. Step 4: Simplify right side
    489,039.10x = 150,119,866,067.64
  5. Step 5: Solve for x
    x = 150,119,866,067.64/489,039.10
  6. Step 6: Final answer
    x = 306,969.05

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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.