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Finding the Fourth Proportional to 593,231.19, 818,659.89 and 321,299.61

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Solution

The fourth proportional to 593,231.19, 818,659.89 and 321,299.61 is: 443,393.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,231.19 : 818,659.89 = 321,299.61 : x
  2. Step 2: Convert to fraction form
    593,231.19/818,659.89 = 321,299.61/x
  3. Step 3: Cross multiply
    593,231.19x = 818,659.89 × 321,299.61
  4. Step 4: Simplify right side
    593,231.19x = 263,035,103,379.64
  5. Step 5: Solve for x
    x = 263,035,103,379.64/593,231.19
  6. Step 6: Final answer
    x = 443,393.92

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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.