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Finding the Fourth Proportional to 397,473.72, 548,513.34 and 227,708.52

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Solution

The fourth proportional to 397,473.72, 548,513.34 and 227,708.52 is: 314,237.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,473.72 : 548,513.34 = 227,708.52 : x
  2. Step 2: Convert to fraction form
    397,473.72/548,513.34 = 227,708.52/x
  3. Step 3: Cross multiply
    397,473.72x = 548,513.34 × 227,708.52
  4. Step 4: Simplify right side
    397,473.72x = 124,901,160,851.66
  5. Step 5: Solve for x
    x = 124,901,160,851.66/397,473.72
  6. Step 6: Final answer
    x = 314,237.53

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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.