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Finding the Fourth Proportional to 441,390.45, 661,626.39 and 204,538.35

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Solution

The fourth proportional to 441,390.45, 661,626.39 and 204,538.35 is: 306,594.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,390.45 : 661,626.39 = 204,538.35 : x
  2. Step 2: Convert to fraction form
    441,390.45/661,626.39 = 204,538.35/x
  3. Step 3: Cross multiply
    441,390.45x = 661,626.39 × 204,538.35
  4. Step 4: Simplify right side
    441,390.45x = 135,327,970,127.06
  5. Step 5: Solve for x
    x = 135,327,970,127.06/441,390.45
  6. Step 6: Final answer
    x = 306,594.69

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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.