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Finding the Fourth Proportional to 593,493.21, 819,019.50 and 321,568.47

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Solution

The fourth proportional to 593,493.21, 819,019.50 and 321,568.47 is: 443,763.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,493.21 : 819,019.50 = 321,568.47 : x
  2. Step 2: Convert to fraction form
    593,493.21/819,019.50 = 321,568.47/x
  3. Step 3: Cross multiply
    593,493.21x = 819,019.50 × 321,568.47
  4. Step 4: Simplify right side
    593,493.21x = 263,370,845,046.78
  5. Step 5: Solve for x
    x = 263,370,845,046.78/593,493.21
  6. Step 6: Final answer
    x = 443,763.87

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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.