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Finding the Fourth Proportional to 445,843.61, 667,879.66 and 245,667.50

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Solution

The fourth proportional to 445,843.61, 667,879.66 and 245,667.50 is: 368,013.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,843.61 : 667,879.66 = 245,667.50 : x
  2. Step 2: Convert to fraction form
    445,843.61/667,879.66 = 245,667.50/x
  3. Step 3: Cross multiply
    445,843.61x = 667,879.66 × 245,667.50
  4. Step 4: Simplify right side
    445,843.61x = 164,076,325,845.29
  5. Step 5: Solve for x
    x = 164,076,325,845.29/445,843.61
  6. Step 6: Final answer
    x = 368,013.18

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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.