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Finding the Fourth Proportional to 323,648.31, 446,451.78 and 202,579.41

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Solution

The fourth proportional to 323,648.31, 446,451.78 and 202,579.41 is: 279,445.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,648.31 : 446,451.78 = 202,579.41 : x
  2. Step 2: Convert to fraction form
    323,648.31/446,451.78 = 202,579.41/x
  3. Step 3: Cross multiply
    323,648.31x = 446,451.78 × 202,579.41
  4. Step 4: Simplify right side
    323,648.31x = 90,441,938,185.85
  5. Step 5: Solve for x
    x = 90,441,938,185.85/323,648.31
  6. Step 6: Final answer
    x = 279,445.11

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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.