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Finding the Fourth Proportional to 542,848.40, 814,272.60 and 243,010.70

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Solution

The fourth proportional to 542,848.40, 814,272.60 and 243,010.70 is: 364,516.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,848.40 : 814,272.60 = 243,010.70 : x
  2. Step 2: Convert to fraction form
    542,848.40/814,272.60 = 243,010.70/x
  3. Step 3: Cross multiply
    542,848.40x = 814,272.60 × 243,010.70
  4. Step 4: Simplify right side
    542,848.40x = 197,876,954,516.82
  5. Step 5: Solve for x
    x = 197,876,954,516.82/542,848.40
  6. Step 6: Final answer
    x = 364,516.05

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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.