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Finding the Fourth Proportional to 451,433.89, 622,974.80 and 247,481.11

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Solution

The fourth proportional to 451,433.89, 622,974.80 and 247,481.11 is: 341,521.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,433.89 : 622,974.80 = 247,481.11 : x
  2. Step 2: Convert to fraction form
    451,433.89/622,974.80 = 247,481.11/x
  3. Step 3: Cross multiply
    451,433.89x = 622,974.80 × 247,481.11
  4. Step 4: Simplify right side
    451,433.89x = 154,174,492,211.19
  5. Step 5: Solve for x
    x = 154,174,492,211.19/451,433.89
  6. Step 6: Final answer
    x = 341,521.75

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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.