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Finding the Fourth Proportional to 475,951.24, 656,817.78 and 261,091.72

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Solution

The fourth proportional to 475,951.24, 656,817.78 and 261,091.72 is: 360,309.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,951.24 : 656,817.78 = 261,091.72 : x
  2. Step 2: Convert to fraction form
    475,951.24/656,817.78 = 261,091.72/x
  3. Step 3: Cross multiply
    475,951.24x = 656,817.78 × 261,091.72
  4. Step 4: Simplify right side
    475,951.24x = 171,489,683,906.78
  5. Step 5: Solve for x
    x = 171,489,683,906.78/475,951.24
  6. Step 6: Final answer
    x = 360,309.35

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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.