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Finding the Fourth Proportional to 436,806.54, 655,308.09 and 170,642.97

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Solution

The fourth proportional to 436,806.54, 655,308.09 and 170,642.97 is: 256,002.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,806.54 : 655,308.09 = 170,642.97 : x
  2. Step 2: Convert to fraction form
    436,806.54/655,308.09 = 170,642.97/x
  3. Step 3: Cross multiply
    436,806.54x = 655,308.09 × 170,642.97
  4. Step 4: Simplify right side
    436,806.54x = 111,823,718,742.63
  5. Step 5: Solve for x
    x = 111,823,718,742.63/436,806.54
  6. Step 6: Final answer
    x = 256,002.85

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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.