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Finding the Third Proportional to 316,858 and 704,558

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Solution

The third proportional to 316,858 and 704,558 is: 1,566,638.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,858 : 704,558 = 704,558 : x
  2. Step 2: Convert to fraction form
    316,858/704,558 = 704,558/x
  3. Step 3: Cross multiply
    316,858x = 704,558 × 704,558
  4. Step 4: Simplify right side
    316,858x = 496,401,975,364
  5. Step 5: Solve for x
    x = 496,401,975,364/316,858
  6. Step 6: Final answer
    x = 1,566,638.61

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.