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Finding the Third Proportional to 193,176 and 407,328

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Solution

The third proportional to 193,176 and 407,328 is: 858,885.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,176 : 407,328 = 407,328 : x
  2. Step 2: Convert to fraction form
    193,176/407,328 = 407,328/x
  3. Step 3: Cross multiply
    193,176x = 407,328 × 407,328
  4. Step 4: Simplify right side
    193,176x = 165,916,099,584
  5. Step 5: Solve for x
    x = 165,916,099,584/193,176
  6. Step 6: Final answer
    x = 858,885.68

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.