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Finding the Third Proportional to 220,765 and 349,724

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Solution

The third proportional to 220,765 and 349,724 is: 554,013.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,765 : 349,724 = 349,724 : x
  2. Step 2: Convert to fraction form
    220,765/349,724 = 349,724/x
  3. Step 3: Cross multiply
    220,765x = 349,724 × 349,724
  4. Step 4: Simplify right side
    220,765x = 122,306,876,176
  5. Step 5: Solve for x
    x = 122,306,876,176/220,765
  6. Step 6: Final answer
    x = 554,013.89

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.