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Finding the Fourth Proportional to 370,552.31, 511,164.97 and 225,402.47

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Solution

The fourth proportional to 370,552.31, 511,164.97 and 225,402.47 is: 310,935.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,552.31 : 511,164.97 = 225,402.47 : x
  2. Step 2: Convert to fraction form
    370,552.31/511,164.97 = 225,402.47/x
  3. Step 3: Cross multiply
    370,552.31x = 511,164.97 × 225,402.47
  4. Step 4: Simplify right side
    370,552.31x = 115,217,846,815.48
  5. Step 5: Solve for x
    x = 115,217,846,815.48/370,552.31
  6. Step 6: Final answer
    x = 310,935.44

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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.