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Finding the Fourth Proportional to 542,830.20, 814,245.30 and 227,254.20

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Solution

The fourth proportional to 542,830.20, 814,245.30 and 227,254.20 is: 340,881.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,830.20 : 814,245.30 = 227,254.20 : x
  2. Step 2: Convert to fraction form
    542,830.20/814,245.30 = 227,254.20/x
  3. Step 3: Cross multiply
    542,830.20x = 814,245.30 × 227,254.20
  4. Step 4: Simplify right side
    542,830.20x = 185,040,664,255.26
  5. Step 5: Solve for x
    x = 185,040,664,255.26/542,830.20
  6. Step 6: Final answer
    x = 340,881.30

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Half scale
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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.