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Finding the Fourth Proportional to 367,421.98, 550,993.08 and 217,704.52

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Solution

The fourth proportional to 367,421.98, 550,993.08 and 217,704.52 is: 326,473.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,421.98 : 550,993.08 = 217,704.52 : x
  2. Step 2: Convert to fraction form
    367,421.98/550,993.08 = 217,704.52/x
  3. Step 3: Cross multiply
    367,421.98x = 550,993.08 × 217,704.52
  4. Step 4: Simplify right side
    367,421.98x = 119,953,684,004.72
  5. Step 5: Solve for x
    x = 119,953,684,004.72/367,421.98
  6. Step 6: Final answer
    x = 326,473.89

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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.