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Finding the Fourth Proportional to 403,680.72, 605,616.24 and 226,310.16

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Solution

The fourth proportional to 403,680.72, 605,616.24 and 226,310.16 is: 339,518.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,680.72 : 605,616.24 = 226,310.16 : x
  2. Step 2: Convert to fraction form
    403,680.72/605,616.24 = 226,310.16/x
  3. Step 3: Cross multiply
    403,680.72x = 605,616.24 × 226,310.16
  4. Step 4: Simplify right side
    403,680.72x = 137,057,108,173.00
  5. Step 5: Solve for x
    x = 137,057,108,173.00/403,680.72
  6. Step 6: Final answer
    x = 339,518.59

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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.