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Finding the Fourth Proportional to 441,678.44, 661,209.80 and 272,655.29

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Solution

The fourth proportional to 441,678.44, 661,209.80 and 272,655.29 is: 408,175.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,678.44 : 661,209.80 = 272,655.29 : x
  2. Step 2: Convert to fraction form
    441,678.44/661,209.80 = 272,655.29/x
  3. Step 3: Cross multiply
    441,678.44x = 661,209.80 × 272,655.29
  4. Step 4: Simplify right side
    441,678.44x = 180,282,350,059.59
  5. Step 5: Solve for x
    x = 180,282,350,059.59/441,678.44
  6. Step 6: Final answer
    x = 408,175.57

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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.