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Finding the Third Proportional to 368,789.75 and 556,577

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Solution

The third proportional to 368,789.75 and 556,577 is: 839,985.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,789.75 : 556,577 = 556,577 : x
  2. Step 2: Convert to fraction form
    368,789.75/556,577 = 556,577/x
  3. Step 3: Cross multiply
    368,789.75x = 556,577 × 556,577
  4. Step 4: Simplify right side
    368,789.75x = 309,777,956,929
  5. Step 5: Solve for x
    x = 309,777,956,929/368,789.75
  6. Step 6: Final answer
    x = 839,985.27

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.