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Finding the Fourth Proportional to 479,315.88, 661,475.92 and 264,469.86

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Solution

The fourth proportional to 479,315.88, 661,475.92 and 264,469.86 is: 364,979.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,315.88 : 661,475.92 = 264,469.86 : x
  2. Step 2: Convert to fraction form
    479,315.88/661,475.92 = 264,469.86/x
  3. Step 3: Cross multiply
    479,315.88x = 661,475.92 × 264,469.86
  4. Step 4: Simplify right side
    479,315.88x = 174,940,443,790.48
  5. Step 5: Solve for x
    x = 174,940,443,790.48/479,315.88
  6. Step 6: Final answer
    x = 364,979.44

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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.