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Finding the Fourth Proportional to 327,959.58, 491,939.46 and 253,188.87

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Solution

The fourth proportional to 327,959.58, 491,939.46 and 253,188.87 is: 379,783.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,959.58 : 491,939.46 = 253,188.87 : x
  2. Step 2: Convert to fraction form
    327,959.58/491,939.46 = 253,188.87/x
  3. Step 3: Cross multiply
    327,959.58x = 491,939.46 × 253,188.87
  4. Step 4: Simplify right side
    327,959.58x = 124,553,595,985.81
  5. Step 5: Solve for x
    x = 124,553,595,985.81/327,959.58
  6. Step 6: Final answer
    x = 379,783.37

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1.5x scale

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.