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Finding the Fourth Proportional to 396,854.61, 595,321.33 and 126,914.93

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Solution

The fourth proportional to 396,854.61, 595,321.33 and 126,914.93 is: 190,385.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,854.61 : 595,321.33 = 126,914.93 : x
  2. Step 2: Convert to fraction form
    396,854.61/595,321.33 = 126,914.93/x
  3. Step 3: Cross multiply
    396,854.61x = 595,321.33 × 126,914.93
  4. Step 4: Simplify right side
    396,854.61x = 75,555,166,729.34
  5. Step 5: Solve for x
    x = 75,555,166,729.34/396,854.61
  6. Step 6: Final answer
    x = 190,385.00

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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.