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Finding the Fourth Proportional to 455,221.98, 682,920.86 and 174,717.36

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Solution

The fourth proportional to 455,221.98, 682,920.86 and 174,717.36 is: 262,109.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,221.98 : 682,920.86 = 174,717.36 : x
  2. Step 2: Convert to fraction form
    455,221.98/682,920.86 = 174,717.36/x
  3. Step 3: Cross multiply
    455,221.98x = 682,920.86 × 174,717.36
  4. Step 4: Simplify right side
    455,221.98x = 119,318,128,874.54
  5. Step 5: Solve for x
    x = 119,318,128,874.54/455,221.98
  6. Step 6: Final answer
    x = 262,109.77

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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.