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Finding the Fourth Proportional to 367,408.72, 550,599.90 and 198,565.12

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Solution

The fourth proportional to 367,408.72, 550,599.90 and 198,565.12 is: 297,570.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,408.72 : 550,599.90 = 198,565.12 : x
  2. Step 2: Convert to fraction form
    367,408.72/550,599.90 = 198,565.12/x
  3. Step 3: Cross multiply
    367,408.72x = 550,599.90 × 198,565.12
  4. Step 4: Simplify right side
    367,408.72x = 109,329,935,215.49
  5. Step 5: Solve for x
    x = 109,329,935,215.49/367,408.72
  6. Step 6: Final answer
    x = 297,570.33

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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.