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Finding the Fourth Proportional to 455,354.58, 682,907.16 and 171,023.13

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Solution

The fourth proportional to 455,354.58, 682,907.16 and 171,023.13 is: 256,487.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,354.58 : 682,907.16 = 171,023.13 : x
  2. Step 2: Convert to fraction form
    455,354.58/682,907.16 = 171,023.13/x
  3. Step 3: Cross multiply
    455,354.58x = 682,907.16 × 171,023.13
  4. Step 4: Simplify right side
    455,354.58x = 116,792,920,002.61
  5. Step 5: Solve for x
    x = 116,792,920,002.61/455,354.58
  6. Step 6: Final answer
    x = 256,487.86

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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.