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Finding the Fourth Proportional to 515,546.96, 773,134.44 and 178,496.24

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Solution

The fourth proportional to 515,546.96, 773,134.44 and 178,496.24 is: 267,679.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,546.96 : 773,134.44 = 178,496.24 : x
  2. Step 2: Convert to fraction form
    515,546.96/773,134.44 = 178,496.24/x
  3. Step 3: Cross multiply
    515,546.96x = 773,134.44 × 178,496.24
  4. Step 4: Simplify right side
    515,546.96x = 138,001,590,554.51
  5. Step 5: Solve for x
    x = 138,001,590,554.51/515,546.96
  6. Step 6: Final answer
    x = 267,679.96

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1.5x scale

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.