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Finding the Fourth Proportional to 393,123.63, 588,799.41 and 275,320.88

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Solution

The fourth proportional to 393,123.63, 588,799.41 and 275,320.88 is: 412,360.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,123.63 : 588,799.41 = 275,320.88 : x
  2. Step 2: Convert to fraction form
    393,123.63/588,799.41 = 275,320.88/x
  3. Step 3: Cross multiply
    393,123.63x = 588,799.41 × 275,320.88
  4. Step 4: Simplify right side
    393,123.63x = 162,108,771,704.68
  5. Step 5: Solve for x
    x = 162,108,771,704.68/393,123.63
  6. Step 6: Final answer
    x = 412,360.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.