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Finding the Fourth Proportional to 463,863.92, 640,021.30 and 270,154.04

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Solution

The fourth proportional to 463,863.92, 640,021.30 and 270,154.04 is: 372,747.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,863.92 : 640,021.30 = 270,154.04 : x
  2. Step 2: Convert to fraction form
    463,863.92/640,021.30 = 270,154.04/x
  3. Step 3: Cross multiply
    463,863.92x = 640,021.30 × 270,154.04
  4. Step 4: Simplify right side
    463,863.92x = 172,904,336,005.56
  5. Step 5: Solve for x
    x = 172,904,336,005.56/463,863.92
  6. Step 6: Final answer
    x = 372,747.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.