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Finding the Fourth Proportional to 395,729.40, 593,579.70 and 159,007.80

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Solution

The fourth proportional to 395,729.40, 593,579.70 and 159,007.80 is: 238,505.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,729.40 : 593,579.70 = 159,007.80 : x
  2. Step 2: Convert to fraction form
    395,729.40/593,579.70 = 159,007.80/x
  3. Step 3: Cross multiply
    395,729.40x = 593,579.70 × 159,007.80
  4. Step 4: Simplify right side
    395,729.40x = 94,383,802,221.66
  5. Step 5: Solve for x
    x = 94,383,802,221.66/395,729.40
  6. Step 6: Final answer
    x = 238,505.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.