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Finding the Fourth Proportional to 426,440.70, 588,484.26 and 235,449.90

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Solution

The fourth proportional to 426,440.70, 588,484.26 and 235,449.90 is: 324,918.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,440.70 : 588,484.26 = 235,449.90 : x
  2. Step 2: Convert to fraction form
    426,440.70/588,484.26 = 235,449.90/x
  3. Step 3: Cross multiply
    426,440.70x = 588,484.26 × 235,449.90
  4. Step 4: Simplify right side
    426,440.70x = 138,558,560,168.57
  5. Step 5: Solve for x
    x = 138,558,560,168.57/426,440.70
  6. Step 6: Final answer
    x = 324,918.71

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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.