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Finding the Third Proportional to 272,922 and 401,580

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Solution

The third proportional to 272,922 and 401,580 is: 590,888.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,922 : 401,580 = 401,580 : x
  2. Step 2: Convert to fraction form
    272,922/401,580 = 401,580/x
  3. Step 3: Cross multiply
    272,922x = 401,580 × 401,580
  4. Step 4: Simplify right side
    272,922x = 161,266,496,400
  5. Step 5: Solve for x
    x = 161,266,496,400/272,922
  6. Step 6: Final answer
    x = 590,888.59

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.