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Finding the Fourth Proportional to 366,791.67, 550,345.89 and 198,430.60

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Solution

The fourth proportional to 366,791.67, 550,345.89 and 198,430.60 is: 297,731.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,791.67 : 550,345.89 = 198,430.60 : x
  2. Step 2: Convert to fraction form
    366,791.67/550,345.89 = 198,430.60/x
  3. Step 3: Cross multiply
    366,791.67x = 550,345.89 × 198,430.60
  4. Step 4: Simplify right side
    366,791.67x = 109,205,465,160.23
  5. Step 5: Solve for x
    x = 109,205,465,160.23/366,791.67
  6. Step 6: Final answer
    x = 297,731.59

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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.