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Finding the Third Proportional to 255,186.75 and 557,066.25

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Solution

The third proportional to 255,186.75 and 557,066.25 is: 1,216,061.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,186.75 : 557,066.25 = 557,066.25 : x
  2. Step 2: Convert to fraction form
    255,186.75/557,066.25 = 557,066.25/x
  3. Step 3: Cross multiply
    255,186.75x = 557,066.25 × 557,066.25
  4. Step 4: Simplify right side
    255,186.75x = 310,322,806,889.06
  5. Step 5: Solve for x
    x = 310,322,806,889.06/255,186.75
  6. Step 6: Final answer
    x = 1,216,061.60

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.