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Finding the Fourth Proportional to 325,363.78, 487,410.08 and 224,143.96

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Solution

The fourth proportional to 325,363.78, 487,410.08 and 224,143.96 is: 335,778.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,363.78 : 487,410.08 = 224,143.96 : x
  2. Step 2: Convert to fraction form
    325,363.78/487,410.08 = 224,143.96/x
  3. Step 3: Cross multiply
    325,363.78x = 487,410.08 × 224,143.96
  4. Step 4: Simplify right side
    325,363.78x = 109,250,021,917.35
  5. Step 5: Solve for x
    x = 109,250,021,917.35/325,363.78
  6. Step 6: Final answer
    x = 335,778.07

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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.