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Finding the Fourth Proportional to 515,623.70, 773,250.26 and 178,573.59

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Solution

The fourth proportional to 515,623.70, 773,250.26 and 178,573.59 is: 267,796.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,623.70 : 773,250.26 = 178,573.59 : x
  2. Step 2: Convert to fraction form
    515,623.70/773,250.26 = 178,573.59/x
  3. Step 3: Cross multiply
    515,623.70x = 773,250.26 × 178,573.59
  4. Step 4: Simplify right side
    515,623.70x = 138,082,074,896.63
  5. Step 5: Solve for x
    x = 138,082,074,896.63/515,623.70
  6. Step 6: Final answer
    x = 267,796.21

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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.