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Finding the Fourth Proportional to 460,540.80, 635,880.96 and 396,768.96

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Solution

The fourth proportional to 460,540.80, 635,880.96 and 396,768.96 is: 547,829.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,540.80 : 635,880.96 = 396,768.96 : x
  2. Step 2: Convert to fraction form
    460,540.80/635,880.96 = 396,768.96/x
  3. Step 3: Cross multiply
    460,540.80x = 635,880.96 × 396,768.96
  4. Step 4: Simplify right side
    460,540.80x = 252,297,827,183.00
  5. Step 5: Solve for x
    x = 252,297,827,183.00/460,540.80
  6. Step 6: Final answer
    x = 547,829.48

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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.