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Finding the Fourth Proportional to 323,348.88, 446,215.31 and 202,556.79

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Solution

The fourth proportional to 323,348.88, 446,215.31 and 202,556.79 is: 279,524.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,348.88 : 446,215.31 = 202,556.79 : x
  2. Step 2: Convert to fraction form
    323,348.88/446,215.31 = 202,556.79/x
  3. Step 3: Cross multiply
    323,348.88x = 446,215.31 × 202,556.79
  4. Step 4: Simplify right side
    323,348.88x = 90,383,939,829.67
  5. Step 5: Solve for x
    x = 90,383,939,829.67/323,348.88
  6. Step 6: Final answer
    x = 279,524.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.