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Finding the Fourth Proportional to 542,663.77, 814,154.82 and 243,077.71

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Solution

The fourth proportional to 542,663.77, 814,154.82 and 243,077.71 is: 364,687.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,663.77 : 814,154.82 = 243,077.71 : x
  2. Step 2: Convert to fraction form
    542,663.77/814,154.82 = 243,077.71/x
  3. Step 3: Cross multiply
    542,663.77x = 814,154.82 × 243,077.71
  4. Step 4: Simplify right side
    542,663.77x = 197,902,889,231.06
  5. Step 5: Solve for x
    x = 197,902,889,231.06/542,663.77
  6. Step 6: Final answer
    x = 364,687.86

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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.