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Finding the Third Proportional to 197,293 and 427,786

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Solution

The third proportional to 197,293 and 427,786 is: 927,558.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,293 : 427,786 = 427,786 : x
  2. Step 2: Convert to fraction form
    197,293/427,786 = 427,786/x
  3. Step 3: Cross multiply
    197,293x = 427,786 × 427,786
  4. Step 4: Simplify right side
    197,293x = 183,000,861,796
  5. Step 5: Solve for x
    x = 183,000,861,796/197,293
  6. Step 6: Final answer
    x = 927,558.82

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.