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Finding the Fourth Proportional to 474,732.78, 655,138.44 and 259,892.83

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Solution

The fourth proportional to 474,732.78, 655,138.44 and 259,892.83 is: 358,656.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,732.78 : 655,138.44 = 259,892.83 : x
  2. Step 2: Convert to fraction form
    474,732.78/655,138.44 = 259,892.83/x
  3. Step 3: Cross multiply
    474,732.78x = 655,138.44 × 259,892.83
  4. Step 4: Simplify right side
    474,732.78x = 170,265,783,213.39
  5. Step 5: Solve for x
    x = 170,265,783,213.39/474,732.78
  6. Step 6: Final answer
    x = 358,656.05

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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.