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Finding the Fourth Proportional to 573,997.82, 861,121.28 and 174,628.21

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Solution

The fourth proportional to 573,997.82, 861,121.28 and 174,628.21 is: 261,980.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,997.82 : 861,121.28 = 174,628.21 : x
  2. Step 2: Convert to fraction form
    573,997.82/861,121.28 = 174,628.21/x
  3. Step 3: Cross multiply
    573,997.82x = 861,121.28 × 174,628.21
  4. Step 4: Simplify right side
    573,997.82x = 150,376,066,003.08
  5. Step 5: Solve for x
    x = 150,376,066,003.08/573,997.82
  6. Step 6: Final answer
    x = 261,980.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.