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Finding the Fourth Proportional to 455,354.08, 682,906.41 and 171,022.63

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Solution

The fourth proportional to 455,354.08, 682,906.41 and 171,022.63 is: 256,487.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,354.08 : 682,906.41 = 171,022.63 : x
  2. Step 2: Convert to fraction form
    455,354.08/682,906.41 = 171,022.63/x
  3. Step 3: Cross multiply
    455,354.08x = 682,906.41 × 171,022.63
  4. Step 4: Simplify right side
    455,354.08x = 116,792,450,282.06
  5. Step 5: Solve for x
    x = 116,792,450,282.06/455,354.08
  6. Step 6: Final answer
    x = 256,487.11

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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.