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Finding the Third Proportional to 356,385.75 and 775,509.75

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Solution

The third proportional to 356,385.75 and 775,509.75 is: 1,687,540.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,385.75 : 775,509.75 = 775,509.75 : x
  2. Step 2: Convert to fraction form
    356,385.75/775,509.75 = 775,509.75/x
  3. Step 3: Cross multiply
    356,385.75x = 775,509.75 × 775,509.75
  4. Step 4: Simplify right side
    356,385.75x = 601,415,372,345.06
  5. Step 5: Solve for x
    x = 601,415,372,345.06/356,385.75
  6. Step 6: Final answer
    x = 1,687,540.46

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