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Finding the Fourth Proportional to 444,420.44, 666,696.28 and 128,836.34

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Solution

The fourth proportional to 444,420.44, 666,696.28 and 128,836.34 is: 193,273.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,420.44 : 666,696.28 = 128,836.34 : x
  2. Step 2: Convert to fraction form
    444,420.44/666,696.28 = 128,836.34/x
  3. Step 3: Cross multiply
    444,420.44x = 666,696.28 × 128,836.34
  4. Step 4: Simplify right side
    444,420.44x = 85,894,708,606.82
  5. Step 5: Solve for x
    x = 85,894,708,606.82/444,420.44
  6. Step 6: Final answer
    x = 193,273.53

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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.