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Finding the Third Proportional to 316,910 and 475,433

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Solution

The third proportional to 316,910 and 475,433 is: 713,251.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,910 : 475,433 = 475,433 : x
  2. Step 2: Convert to fraction form
    316,910/475,433 = 475,433/x
  3. Step 3: Cross multiply
    316,910x = 475,433 × 475,433
  4. Step 4: Simplify right side
    316,910x = 226,036,537,489
  5. Step 5: Solve for x
    x = 226,036,537,489/316,910
  6. Step 6: Final answer
    x = 713,251.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.