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Finding the Fourth Proportional to 455,295.56, 682,383.90 and 322,213.64

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Solution

The fourth proportional to 455,295.56, 682,383.90 and 322,213.64 is: 482,924.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,295.56 : 682,383.90 = 322,213.64 : x
  2. Step 2: Convert to fraction form
    455,295.56/682,383.90 = 322,213.64/x
  3. Step 3: Cross multiply
    455,295.56x = 682,383.90 × 322,213.64
  4. Step 4: Simplify right side
    455,295.56x = 219,873,400,296.40
  5. Step 5: Solve for x
    x = 219,873,400,296.40/455,295.56
  6. Step 6: Final answer
    x = 482,924.54

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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.