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Finding the Fourth Proportional to 593,280.72, 818,611.92 and 479,906.64

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Solution

The fourth proportional to 593,280.72, 818,611.92 and 479,906.64 is: 662,177.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,280.72 : 818,611.92 = 479,906.64 : x
  2. Step 2: Convert to fraction form
    593,280.72/818,611.92 = 479,906.64/x
  3. Step 3: Cross multiply
    593,280.72x = 818,611.92 × 479,906.64
  4. Step 4: Simplify right side
    593,280.72x = 392,857,295,991.15
  5. Step 5: Solve for x
    x = 392,857,295,991.15/593,280.72
  6. Step 6: Final answer
    x = 662,177.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.