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Finding the Fourth Proportional to 445,546.08, 668,375.14 and 217,849.32

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Solution

The fourth proportional to 445,546.08, 668,375.14 and 217,849.32 is: 326,801.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,546.08 : 668,375.14 = 217,849.32 : x
  2. Step 2: Convert to fraction form
    445,546.08/668,375.14 = 217,849.32/x
  3. Step 3: Cross multiply
    445,546.08x = 668,375.14 × 217,849.32
  4. Step 4: Simplify right side
    445,546.08x = 145,605,069,753.91
  5. Step 5: Solve for x
    x = 145,605,069,753.91/445,546.08
  6. Step 6: Final answer
    x = 326,801.37

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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.