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Finding the Fourth Proportional to 413,326.89, 570,351.71 and 231,997.25

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Solution

The fourth proportional to 413,326.89, 570,351.71 and 231,997.25 is: 320,134.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,326.89 : 570,351.71 = 231,997.25 : x
  2. Step 2: Convert to fraction form
    413,326.89/570,351.71 = 231,997.25/x
  3. Step 3: Cross multiply
    413,326.89x = 570,351.71 × 231,997.25
  4. Step 4: Simplify right side
    413,326.89x = 132,320,028,252.80
  5. Step 5: Solve for x
    x = 132,320,028,252.80/413,326.89
  6. Step 6: Final answer
    x = 320,134.09

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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.