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Finding the Fourth Proportional to 400,593.25, 552,818.69 and 221,745.25

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Solution

The fourth proportional to 400,593.25, 552,818.69 and 221,745.25 is: 306,008.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,593.25 : 552,818.69 = 221,745.25 : x
  2. Step 2: Convert to fraction form
    400,593.25/552,818.69 = 221,745.25/x
  3. Step 3: Cross multiply
    400,593.25x = 552,818.69 × 221,745.25
  4. Step 4: Simplify right side
    400,593.25x = 122,584,918,618.72
  5. Step 5: Solve for x
    x = 122,584,918,618.72/400,593.25
  6. Step 6: Final answer
    x = 306,008.45

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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.