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Finding the Fourth Proportional to 593,129.39, 818,519.33 and 321,197.70

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Solution

The fourth proportional to 593,129.39, 818,519.33 and 321,197.70 is: 443,253.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,129.39 : 818,519.33 = 321,197.70 : x
  2. Step 2: Convert to fraction form
    593,129.39/818,519.33 = 321,197.70/x
  3. Step 3: Cross multiply
    593,129.39x = 818,519.33 × 321,197.70
  4. Step 4: Simplify right side
    593,129.39x = 262,906,528,267.25
  5. Step 5: Solve for x
    x = 262,906,528,267.25/593,129.39
  6. Step 6: Final answer
    x = 443,253.25

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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.