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Finding the Fourth Proportional to 396,597.35, 594,305.33 and 219,155.11

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Solution

The fourth proportional to 396,597.35, 594,305.33 and 219,155.11 is: 328,406.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,597.35 : 594,305.33 = 219,155.11 : x
  2. Step 2: Convert to fraction form
    396,597.35/594,305.33 = 219,155.11/x
  3. Step 3: Cross multiply
    396,597.35x = 594,305.33 × 219,155.11
  4. Step 4: Simplify right side
    396,597.35x = 130,245,049,031.86
  5. Step 5: Solve for x
    x = 130,245,049,031.86/396,597.35
  6. Step 6: Final answer
    x = 328,406.25

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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.