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Finding the Third Proportional to 265,556.25 and 406,077.75

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Solution

The third proportional to 265,556.25 and 406,077.75 is: 620,957.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,556.25 : 406,077.75 = 406,077.75 : x
  2. Step 2: Convert to fraction form
    265,556.25/406,077.75 = 406,077.75/x
  3. Step 3: Cross multiply
    265,556.25x = 406,077.75 × 406,077.75
  4. Step 4: Simplify right side
    265,556.25x = 164,899,139,045.06
  5. Step 5: Solve for x
    x = 164,899,139,045.06/265,556.25
  6. Step 6: Final answer
    x = 620,957.48

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.