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Finding the Fourth Proportional to 394,643.44, 544,613.90 and 224,873.92

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Solution

The fourth proportional to 394,643.44, 544,613.90 and 224,873.92 is: 310,329.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,643.44 : 544,613.90 = 224,873.92 : x
  2. Step 2: Convert to fraction form
    394,643.44/544,613.90 = 224,873.92/x
  3. Step 3: Cross multiply
    394,643.44x = 544,613.90 × 224,873.92
  4. Step 4: Simplify right side
    394,643.44x = 122,469,462,579.49
  5. Step 5: Solve for x
    x = 122,469,462,579.49/394,643.44
  6. Step 6: Final answer
    x = 310,329.40

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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.