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Finding the Fourth Proportional to 439,086.88, 605,940.80 and 237,882.88

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Solution

The fourth proportional to 439,086.88, 605,940.80 and 237,882.88 is: 328,278.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,086.88 : 605,940.80 = 237,882.88 : x
  2. Step 2: Convert to fraction form
    439,086.88/605,940.80 = 237,882.88/x
  3. Step 3: Cross multiply
    439,086.88x = 605,940.80 × 237,882.88
  4. Step 4: Simplify right side
    439,086.88x = 144,142,942,613.50
  5. Step 5: Solve for x
    x = 144,142,942,613.50/439,086.88
  6. Step 6: Final answer
    x = 328,278.87

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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.