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Finding the Fourth Proportional to 311,208.48, 429,463.52 and 175,255.76

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Solution

The fourth proportional to 311,208.48, 429,463.52 and 175,255.76 is: 241,850.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,208.48 : 429,463.52 = 175,255.76 : x
  2. Step 2: Convert to fraction form
    311,208.48/429,463.52 = 175,255.76/x
  3. Step 3: Cross multiply
    311,208.48x = 429,463.52 × 175,255.76
  4. Step 4: Simplify right side
    311,208.48x = 75,265,955,589.88
  5. Step 5: Solve for x
    x = 75,265,955,589.88/311,208.48
  6. Step 6: Final answer
    x = 241,850.59

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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.