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Finding the Fourth Proportional to 392,186.88, 541,244.88 and 222,432.12

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Solution

The fourth proportional to 392,186.88, 541,244.88 and 222,432.12 is: 306,971.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,186.88 : 541,244.88 = 222,432.12 : x
  2. Step 2: Convert to fraction form
    392,186.88/541,244.88 = 222,432.12/x
  3. Step 3: Cross multiply
    392,186.88x = 541,244.88 × 222,432.12
  4. Step 4: Simplify right side
    392,186.88x = 120,390,246,097.55
  5. Step 5: Solve for x
    x = 120,390,246,097.55/392,186.88
  6. Step 6: Final answer
    x = 306,971.63

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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.