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Finding the Fourth Proportional to 356,167.44, 491,283.96 and 248,698.20

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Solution

The fourth proportional to 356,167.44, 491,283.96 and 248,698.20 is: 343,044.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,167.44 : 491,283.96 = 248,698.20 : x
  2. Step 2: Convert to fraction form
    356,167.44/491,283.96 = 248,698.20/x
  3. Step 3: Cross multiply
    356,167.44x = 491,283.96 × 248,698.20
  4. Step 4: Simplify right side
    356,167.44x = 122,181,436,540.87
  5. Step 5: Solve for x
    x = 122,181,436,540.87/356,167.44
  6. Step 6: Final answer
    x = 343,044.94

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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.