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Finding the Fourth Proportional to 469,083.87, 647,336.86 and 254,223.88

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Solution

The fourth proportional to 469,083.87, 647,336.86 and 254,223.88 is: 350,829.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,083.87 : 647,336.86 = 254,223.88 : x
  2. Step 2: Convert to fraction form
    469,083.87/647,336.86 = 254,223.88/x
  3. Step 3: Cross multiply
    469,083.87x = 647,336.86 × 254,223.88
  4. Step 4: Simplify right side
    469,083.87x = 164,568,488,216.22
  5. Step 5: Solve for x
    x = 164,568,488,216.22/469,083.87
  6. Step 6: Final answer
    x = 350,829.56

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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.