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Finding the Fourth Proportional to 451,006.64, 622,381.28 and 247,061.60

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Solution

The fourth proportional to 451,006.64, 622,381.28 and 247,061.60 is: 340,940.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,006.64 : 622,381.28 = 247,061.60 : x
  2. Step 2: Convert to fraction form
    451,006.64/622,381.28 = 247,061.60/x
  3. Step 3: Cross multiply
    451,006.64x = 622,381.28 × 247,061.60
  4. Step 4: Simplify right side
    451,006.64x = 153,766,514,846.85
  5. Step 5: Solve for x
    x = 153,766,514,846.85/451,006.64
  6. Step 6: Final answer
    x = 340,940.69

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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.