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Finding the Third Proportional to 222,628 and 344,778

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Solution

The third proportional to 222,628 and 344,778 is: 533,948.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,628 : 344,778 = 344,778 : x
  2. Step 2: Convert to fraction form
    222,628/344,778 = 344,778/x
  3. Step 3: Cross multiply
    222,628x = 344,778 × 344,778
  4. Step 4: Simplify right side
    222,628x = 118,871,869,284
  5. Step 5: Solve for x
    x = 118,871,869,284/222,628
  6. Step 6: Final answer
    x = 533,948.42

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.