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Finding the Fourth Proportional to 543,175.20, 814,762.80 and 227,599.20

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Solution

The fourth proportional to 543,175.20, 814,762.80 and 227,599.20 is: 341,398.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,175.20 : 814,762.80 = 227,599.20 : x
  2. Step 2: Convert to fraction form
    543,175.20/814,762.80 = 227,599.20/x
  3. Step 3: Cross multiply
    543,175.20x = 814,762.80 × 227,599.20
  4. Step 4: Simplify right side
    543,175.20x = 185,439,361,469.76
  5. Step 5: Solve for x
    x = 185,439,361,469.76/543,175.20
  6. Step 6: Final answer
    x = 341,398.80

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Double scale
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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.