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Finding the Fourth Proportional to 396,562.72, 594,844.40 and 326,294.32

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Solution

The fourth proportional to 396,562.72, 594,844.40 and 326,294.32 is: 489,441.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,562.72 : 594,844.40 = 326,294.32 : x
  2. Step 2: Convert to fraction form
    396,562.72/594,844.40 = 326,294.32/x
  3. Step 3: Cross multiply
    396,562.72x = 594,844.40 × 326,294.32
  4. Step 4: Simplify right side
    396,562.72x = 194,094,349,003.81
  5. Step 5: Solve for x
    x = 194,094,349,003.81/396,562.72
  6. Step 6: Final answer
    x = 489,441.74

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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.