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Finding the Fourth Proportional to 391,992.31, 541,181.28 and 246,922.45

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Solution

The fourth proportional to 391,992.31, 541,181.28 and 246,922.45 is: 340,899.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,992.31 : 541,181.28 = 246,922.45 : x
  2. Step 2: Convert to fraction form
    391,992.31/541,181.28 = 246,922.45/x
  3. Step 3: Cross multiply
    391,992.31x = 541,181.28 × 246,922.45
  4. Step 4: Simplify right side
    391,992.31x = 133,629,803,611.22
  5. Step 5: Solve for x
    x = 133,629,803,611.22/391,992.31
  6. Step 6: Final answer
    x = 340,899.05

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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.