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Finding the Third Proportional to 258,834 and 530,219

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Solution

The third proportional to 258,834 and 530,219 is: 1,086,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,834 : 530,219 = 530,219 : x
  2. Step 2: Convert to fraction form
    258,834/530,219 = 530,219/x
  3. Step 3: Cross multiply
    258,834x = 530,219 × 530,219
  4. Step 4: Simplify right side
    258,834x = 281,132,187,961
  5. Step 5: Solve for x
    x = 281,132,187,961/258,834
  6. Step 6: Final answer
    x = 1,086,148.60

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.