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Finding the Fourth Proportional to 396,694.88, 594,026.40 and 219,004.64

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Solution

The fourth proportional to 396,694.88, 594,026.40 and 219,004.64 is: 327,946.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,694.88 : 594,026.40 = 219,004.64 : x
  2. Step 2: Convert to fraction form
    396,694.88/594,026.40 = 219,004.64/x
  3. Step 3: Cross multiply
    396,694.88x = 594,026.40 × 219,004.64
  4. Step 4: Simplify right side
    396,694.88x = 130,094,537,882.50
  5. Step 5: Solve for x
    x = 130,094,537,882.50/396,694.88
  6. Step 6: Final answer
    x = 327,946.10

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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.