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Finding the Fourth Proportional to 316,546.88, 436,834.49 and 173,306.88

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Solution

The fourth proportional to 316,546.88, 436,834.49 and 173,306.88 is: 239,163.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,546.88 : 436,834.49 = 173,306.88 : x
  2. Step 2: Convert to fraction form
    316,546.88/436,834.49 = 173,306.88/x
  3. Step 3: Cross multiply
    316,546.88x = 436,834.49 × 173,306.88
  4. Step 4: Simplify right side
    316,546.88x = 75,706,422,538.29
  5. Step 5: Solve for x
    x = 75,706,422,538.29/316,546.88
  6. Step 6: Final answer
    x = 239,163.38

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1.5x scale

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.