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Finding the Fourth Proportional to 582,753.31, 804,168.36 and 321,100.49

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Solution

The fourth proportional to 582,753.31, 804,168.36 and 321,100.49 is: 443,101.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,753.31 : 804,168.36 = 321,100.49 : x
  2. Step 2: Convert to fraction form
    582,753.31/804,168.36 = 321,100.49/x
  3. Step 3: Cross multiply
    582,753.31x = 804,168.36 × 321,100.49
  4. Step 4: Simplify right side
    582,753.31x = 258,218,856,448.92
  5. Step 5: Solve for x
    x = 258,218,856,448.92/582,753.31
  6. Step 6: Final answer
    x = 443,101.49

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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.