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Finding the Fourth Proportional to 403,753.54, 605,631.22 and 379,091.46

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Solution

The fourth proportional to 403,753.54, 605,631.22 and 379,091.46 is: 568,638.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,753.54 : 605,631.22 = 379,091.46 : x
  2. Step 2: Convert to fraction form
    403,753.54/605,631.22 = 379,091.46/x
  3. Step 3: Cross multiply
    403,753.54x = 605,631.22 × 379,091.46
  4. Step 4: Simplify right side
    403,753.54x = 229,589,623,411.38
  5. Step 5: Solve for x
    x = 229,589,623,411.38/403,753.54
  6. Step 6: Final answer
    x = 568,638.04

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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.