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Finding the Fourth Proportional to 401,273.82, 553,754.34 and 219,982.46

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Solution

The fourth proportional to 401,273.82, 553,754.34 and 219,982.46 is: 303,573.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,273.82 : 553,754.34 = 219,982.46 : x
  2. Step 2: Convert to fraction form
    401,273.82/553,754.34 = 219,982.46/x
  3. Step 3: Cross multiply
    401,273.82x = 553,754.34 × 219,982.46
  4. Step 4: Simplify right side
    401,273.82x = 121,816,239,180.11
  5. Step 5: Solve for x
    x = 121,816,239,180.11/401,273.82
  6. Step 6: Final answer
    x = 303,573.85

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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.