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Finding the Fourth Proportional to 441,640.80, 662,497.20 and 188,923.20

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Solution

The fourth proportional to 441,640.80, 662,497.20 and 188,923.20 is: 283,400.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,640.80 : 662,497.20 = 188,923.20 : x
  2. Step 2: Convert to fraction form
    441,640.80/662,497.20 = 188,923.20/x
  3. Step 3: Cross multiply
    441,640.80x = 662,497.20 × 188,923.20
  4. Step 4: Simplify right side
    441,640.80x = 125,161,091,015.04
  5. Step 5: Solve for x
    x = 125,161,091,015.04/441,640.80
  6. Step 6: Final answer
    x = 283,400.20

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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.