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Finding the Fourth Proportional to 394,466.49, 544,613.22 and 303,651.72

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Solution

The fourth proportional to 394,466.49, 544,613.22 and 303,651.72 is: 419,231.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,466.49 : 544,613.22 = 303,651.72 : x
  2. Step 2: Convert to fraction form
    394,466.49/544,613.22 = 303,651.72/x
  3. Step 3: Cross multiply
    394,466.49x = 544,613.22 × 303,651.72
  4. Step 4: Simplify right side
    394,466.49x = 165,372,740,987.74
  5. Step 5: Solve for x
    x = 165,372,740,987.74/394,466.49
  6. Step 6: Final answer
    x = 419,231.41

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1.5x scale

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.