Home / 511,997.72-706,557.30-285,643.28

Finding the Fourth Proportional to 511,997.72, 706,557.30 and 285,643.28

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Solution

The fourth proportional to 511,997.72, 706,557.30 and 285,643.28 is: 394,187.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,997.72 : 706,557.30 = 285,643.28 : x
  2. Step 2: Convert to fraction form
    511,997.72/706,557.30 = 285,643.28/x
  3. Step 3: Cross multiply
    511,997.72x = 706,557.30 × 285,643.28
  4. Step 4: Simplify right side
    511,997.72x = 201,823,344,679.94
  5. Step 5: Solve for x
    x = 201,823,344,679.94/511,997.72
  6. Step 6: Final answer
    x = 394,187.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.