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Finding the Fourth Proportional to 568,421.86, 782,431.13 and 495,696.44

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Solution

The fourth proportional to 568,421.86, 782,431.13 and 495,696.44 is: 682,324.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,421.86 : 782,431.13 = 495,696.44 : x
  2. Step 2: Convert to fraction form
    568,421.86/782,431.13 = 495,696.44/x
  3. Step 3: Cross multiply
    568,421.86x = 782,431.13 × 495,696.44
  4. Step 4: Simplify right side
    568,421.86x = 387,848,325,686.18
  5. Step 5: Solve for x
    x = 387,848,325,686.18/568,421.86
  6. Step 6: Final answer
    x = 682,324.79

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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.