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Finding the Fourth Proportional to 400,936.35, 601,404.53 and 248,721.15

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Solution

The fourth proportional to 400,936.35, 601,404.53 and 248,721.15 is: 373,081.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,936.35 : 601,404.53 = 248,721.15 : x
  2. Step 2: Convert to fraction form
    400,936.35/601,404.53 = 248,721.15/x
  3. Step 3: Cross multiply
    400,936.35x = 601,404.53 × 248,721.15
  4. Step 4: Simplify right side
    400,936.35x = 149,582,025,073.20
  5. Step 5: Solve for x
    x = 149,582,025,073.20/400,936.35
  6. Step 6: Final answer
    x = 373,081.73

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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.