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Finding the Fourth Proportional to 463,137.37, 639,115.84 and 256,414.97

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Solution

The fourth proportional to 463,137.37, 639,115.84 and 256,414.97 is: 353,845.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,137.37 : 639,115.84 = 256,414.97 : x
  2. Step 2: Convert to fraction form
    463,137.37/639,115.84 = 256,414.97/x
  3. Step 3: Cross multiply
    463,137.37x = 639,115.84 × 256,414.97
  4. Step 4: Simplify right side
    463,137.37x = 163,878,867,658.05
  5. Step 5: Solve for x
    x = 163,878,867,658.05/463,137.37
  6. Step 6: Final answer
    x = 353,845.06

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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.