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Finding the Fourth Proportional to 463,576.75, 639,662.84 and 270,016.32

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Solution

The fourth proportional to 463,576.75, 639,662.84 and 270,016.32 is: 372,579.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,576.75 : 639,662.84 = 270,016.32 : x
  2. Step 2: Convert to fraction form
    463,576.75/639,662.84 = 270,016.32/x
  3. Step 3: Cross multiply
    463,576.75x = 639,662.84 × 270,016.32
  4. Step 4: Simplify right side
    463,576.75x = 172,719,405,173.43
  5. Step 5: Solve for x
    x = 172,719,405,173.43/463,576.75
  6. Step 6: Final answer
    x = 372,579.95

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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.