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Finding the Fourth Proportional to 483,939.96, 667,658.70 and 292,883.64

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Solution

The fourth proportional to 483,939.96, 667,658.70 and 292,883.64 is: 404,071.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,939.96 : 667,658.70 = 292,883.64 : x
  2. Step 2: Convert to fraction form
    483,939.96/667,658.70 = 292,883.64/x
  3. Step 3: Cross multiply
    483,939.96x = 667,658.70 × 292,883.64
  4. Step 4: Simplify right side
    483,939.96x = 195,546,310,333.67
  5. Step 5: Solve for x
    x = 195,546,310,333.67/483,939.96
  6. Step 6: Final answer
    x = 404,071.43

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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.