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Finding the Fourth Proportional to 396,068.72, 594,093.27 and 115,588.40

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Solution

The fourth proportional to 396,068.72, 594,093.27 and 115,588.40 is: 173,379.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,068.72 : 594,093.27 = 115,588.40 : x
  2. Step 2: Convert to fraction form
    396,068.72/594,093.27 = 115,588.40/x
  3. Step 3: Cross multiply
    396,068.72x = 594,093.27 × 115,588.40
  4. Step 4: Simplify right side
    396,068.72x = 68,670,290,530.07
  5. Step 5: Solve for x
    x = 68,670,290,530.07/396,068.72
  6. Step 6: Final answer
    x = 173,379.74

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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.