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Finding the Third Proportional to 254,848 and 356,447

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Solution

The third proportional to 254,848 and 356,447 is: 498,549.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,848 : 356,447 = 356,447 : x
  2. Step 2: Convert to fraction form
    254,848/356,447 = 356,447/x
  3. Step 3: Cross multiply
    254,848x = 356,447 × 356,447
  4. Step 4: Simplify right side
    254,848x = 127,054,463,809
  5. Step 5: Solve for x
    x = 127,054,463,809/254,848
  6. Step 6: Final answer
    x = 498,549.97

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.