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Finding the Fourth Proportional to 323,043.21, 445,791.69 and 177,847.79

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Solution

The fourth proportional to 323,043.21, 445,791.69 and 177,847.79 is: 245,425.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,043.21 : 445,791.69 = 177,847.79 : x
  2. Step 2: Convert to fraction form
    323,043.21/445,791.69 = 177,847.79/x
  3. Step 3: Cross multiply
    323,043.21x = 445,791.69 × 177,847.79
  4. Step 4: Simplify right side
    323,043.21x = 79,283,064,637.91
  5. Step 5: Solve for x
    x = 79,283,064,637.91/323,043.21
  6. Step 6: Final answer
    x = 245,425.57

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1.5x scale

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.