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Finding the Fourth Proportional to 474,842.28, 655,256.37 and 259,940.79

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Solution

The fourth proportional to 474,842.28, 655,256.37 and 259,940.79 is: 358,704.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,842.28 : 655,256.37 = 259,940.79 : x
  2. Step 2: Convert to fraction form
    474,842.28/655,256.37 = 259,940.79/x
  3. Step 3: Cross multiply
    474,842.28x = 655,256.37 × 259,940.79
  4. Step 4: Simplify right side
    474,842.28x = 170,327,858,470.33
  5. Step 5: Solve for x
    x = 170,327,858,470.33/474,842.28
  6. Step 6: Final answer
    x = 358,704.07

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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.