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Finding the Fourth Proportional to 441,874.40, 662,908.80 and 142,368.80

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Solution

The fourth proportional to 441,874.40, 662,908.80 and 142,368.80 is: 213,584.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,874.40 : 662,908.80 = 142,368.80 : x
  2. Step 2: Convert to fraction form
    441,874.40/662,908.80 = 142,368.80/x
  3. Step 3: Cross multiply
    441,874.40x = 662,908.80 × 142,368.80
  4. Step 4: Simplify right side
    441,874.40x = 94,377,530,365.44
  5. Step 5: Solve for x
    x = 94,377,530,365.44/441,874.40
  6. Step 6: Final answer
    x = 213,584.52

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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.