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Finding the Fourth Proportional to 447,131.96, 616,778.82 and 281,295.71

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Solution

The fourth proportional to 447,131.96, 616,778.82 and 281,295.71 is: 388,022.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,131.96 : 616,778.82 = 281,295.71 : x
  2. Step 2: Convert to fraction form
    447,131.96/616,778.82 = 281,295.71/x
  3. Step 3: Cross multiply
    447,131.96x = 616,778.82 × 281,295.71
  4. Step 4: Simplify right side
    447,131.96x = 173,497,235,420.95
  5. Step 5: Solve for x
    x = 173,497,235,420.95/447,131.96
  6. Step 6: Final answer
    x = 388,022.44

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1.5x scale

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.