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Finding the Fourth Proportional to 542,827.30, 814,289.55 and 227,218.90

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Solution

The fourth proportional to 542,827.30, 814,289.55 and 227,218.90 is: 340,848.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,827.30 : 814,289.55 = 227,218.90 : x
  2. Step 2: Convert to fraction form
    542,827.30/814,289.55 = 227,218.90/x
  3. Step 3: Cross multiply
    542,827.30x = 814,289.55 × 227,218.90
  4. Step 4: Simplify right side
    542,827.30x = 185,021,975,832.50
  5. Step 5: Solve for x
    x = 185,021,975,832.50/542,827.30
  6. Step 6: Final answer
    x = 340,848.69

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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.