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Finding the Fourth Proportional to 636,791.67, 878,898.11 and 365,041.89

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Solution

The fourth proportional to 636,791.67, 878,898.11 and 365,041.89 is: 503,829.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,791.67 : 878,898.11 = 365,041.89 : x
  2. Step 2: Convert to fraction form
    636,791.67/878,898.11 = 365,041.89/x
  3. Step 3: Cross multiply
    636,791.67x = 878,898.11 × 365,041.89
  4. Step 4: Simplify right side
    636,791.67x = 320,834,625,366.62
  5. Step 5: Solve for x
    x = 320,834,625,366.62/636,791.67
  6. Step 6: Final answer
    x = 503,829.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.