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Finding the Fourth Proportional to 400,558.91, 552,754.63 and 219,266.33

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Solution

The fourth proportional to 400,558.91, 552,754.63 and 219,266.33 is: 302,578.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,558.91 : 552,754.63 = 219,266.33 : x
  2. Step 2: Convert to fraction form
    400,558.91/552,754.63 = 219,266.33/x
  3. Step 3: Cross multiply
    400,558.91x = 552,754.63 × 219,266.33
  4. Step 4: Simplify right side
    400,558.91x = 121,200,479,110.61
  5. Step 5: Solve for x
    x = 121,200,479,110.61/400,558.91
  6. Step 6: Final answer
    x = 302,578.41

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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.