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Finding the Fourth Proportional to 400,649.52, 601,021.72 and 250,902.19

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Solution

The fourth proportional to 400,649.52, 601,021.72 and 250,902.19 is: 376,382.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,649.52 : 601,021.72 = 250,902.19 : x
  2. Step 2: Convert to fraction form
    400,649.52/601,021.72 = 250,902.19/x
  3. Step 3: Cross multiply
    400,649.52x = 601,021.72 × 250,902.19
  4. Step 4: Simplify right side
    400,649.52x = 150,797,665,785.57
  5. Step 5: Solve for x
    x = 150,797,665,785.57/400,649.52
  6. Step 6: Final answer
    x = 376,382.99

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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.