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Finding the Fourth Proportional to 396,568.28, 591,999.86 and 339,797

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Solution

The fourth proportional to 396,568.28, 591,999.86 and 339,797 is: 507,251.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,568.28 : 591,999.86 = 339,797 : x
  2. Step 2: Convert to fraction form
    396,568.28/591,999.86 = 339,797/x
  3. Step 3: Cross multiply
    396,568.28x = 591,999.86 × 339,797
  4. Step 4: Simplify right side
    396,568.28x = 201,159,776,428.42
  5. Step 5: Solve for x
    x = 201,159,776,428.42/396,568.28
  6. Step 6: Final answer
    x = 507,251.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.