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Finding the Fourth Proportional to 552,286.01, 762,149.92 and 310,563.43

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Solution

The fourth proportional to 552,286.01, 762,149.92 and 310,563.43 is: 428,574.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,286.01 : 762,149.92 = 310,563.43 : x
  2. Step 2: Convert to fraction form
    552,286.01/762,149.92 = 310,563.43/x
  3. Step 3: Cross multiply
    552,286.01x = 762,149.92 × 310,563.43
  4. Step 4: Simplify right side
    552,286.01x = 236,695,893,329.43
  5. Step 5: Solve for x
    x = 236,695,893,329.43/552,286.01
  6. Step 6: Final answer
    x = 428,574.85

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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.