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Finding the Fourth Proportional to 664,330, 916,794.84 and 362,543.44

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Solution

The fourth proportional to 664,330, 916,794.84 and 362,543.44 is: 500,320.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,330 : 916,794.84 = 362,543.44 : x
  2. Step 2: Convert to fraction form
    664,330/916,794.84 = 362,543.44/x
  3. Step 3: Cross multiply
    664,330x = 916,794.84 × 362,543.44
  4. Step 4: Simplify right side
    664,330x = 332,377,955,067.85
  5. Step 5: Solve for x
    x = 332,377,955,067.85/664,330
  6. Step 6: Final answer
    x = 500,320.56

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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.