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Finding the Fourth Proportional to 493,958.86, 681,658.95 and 267,603.82

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Solution

The fourth proportional to 493,958.86, 681,658.95 and 267,603.82 is: 369,290.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,958.86 : 681,658.95 = 267,603.82 : x
  2. Step 2: Convert to fraction form
    493,958.86/681,658.95 = 267,603.82/x
  3. Step 3: Cross multiply
    493,958.86x = 681,658.95 × 267,603.82
  4. Step 4: Simplify right side
    493,958.86x = 182,414,538,957.19
  5. Step 5: Solve for x
    x = 182,414,538,957.19/493,958.86
  6. Step 6: Final answer
    x = 369,290.95

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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.