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Finding the Fourth Proportional to 432,846.80, 649,270.20 and 266,728.40

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Solution

The fourth proportional to 432,846.80, 649,270.20 and 266,728.40 is: 400,092.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,846.80 : 649,270.20 = 266,728.40 : x
  2. Step 2: Convert to fraction form
    432,846.80/649,270.20 = 266,728.40/x
  3. Step 3: Cross multiply
    432,846.80x = 649,270.20 × 266,728.40
  4. Step 4: Simplify right side
    432,846.80x = 173,178,801,613.68
  5. Step 5: Solve for x
    x = 173,178,801,613.68/432,846.80
  6. Step 6: Final answer
    x = 400,092.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.