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Finding the Fourth Proportional to 561,418.44, 842,131.31 and 224,487.40

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Solution

The fourth proportional to 561,418.44, 842,131.31 and 224,487.40 is: 336,732.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,418.44 : 842,131.31 = 224,487.40 : x
  2. Step 2: Convert to fraction form
    561,418.44/842,131.31 = 224,487.40/x
  3. Step 3: Cross multiply
    561,418.44x = 842,131.31 × 224,487.40
  4. Step 4: Simplify right side
    561,418.44x = 189,047,865,012.73
  5. Step 5: Solve for x
    x = 189,047,865,012.73/561,418.44
  6. Step 6: Final answer
    x = 336,732.55

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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.