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Finding the Fourth Proportional to 339,587.46, 468,603.27 and 196,356.78

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Solution

The fourth proportional to 339,587.46, 468,603.27 and 196,356.78 is: 270,956.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,587.46 : 468,603.27 = 196,356.78 : x
  2. Step 2: Convert to fraction form
    339,587.46/468,603.27 = 196,356.78/x
  3. Step 3: Cross multiply
    339,587.46x = 468,603.27 × 196,356.78
  4. Step 4: Simplify right side
    339,587.46x = 92,013,429,194.67
  5. Step 5: Solve for x
    x = 92,013,429,194.67/339,587.46
  6. Step 6: Final answer
    x = 270,956.50

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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.