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Finding the Fourth Proportional to 444,253.25, 612,431.78 and 316,707.41

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Solution

The fourth proportional to 444,253.25, 612,431.78 and 316,707.41 is: 436,601.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,253.25 : 612,431.78 = 316,707.41 : x
  2. Step 2: Convert to fraction form
    444,253.25/612,431.78 = 316,707.41/x
  3. Step 3: Cross multiply
    444,253.25x = 612,431.78 × 316,707.41
  4. Step 4: Simplify right side
    444,253.25x = 193,961,682,845.49
  5. Step 5: Solve for x
    x = 193,961,682,845.49/444,253.25
  6. Step 6: Final answer
    x = 436,601.61

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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.