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Finding the Fourth Proportional to 493,958.42, 681,658.35 and 267,603.38

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Solution

The fourth proportional to 493,958.42, 681,658.35 and 267,603.38 is: 369,290.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,958.42 : 681,658.35 = 267,603.38 : x
  2. Step 2: Convert to fraction form
    493,958.42/681,658.35 = 267,603.38/x
  3. Step 3: Cross multiply
    493,958.42x = 681,658.35 × 267,603.38
  4. Step 4: Simplify right side
    493,958.42x = 182,414,079,165.86
  5. Step 5: Solve for x
    x = 182,414,079,165.86/493,958.42
  6. Step 6: Final answer
    x = 369,290.35

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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.