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Finding the Fourth Proportional to 399,118.11, 550,610.22 and 244,076.21

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Solution

The fourth proportional to 399,118.11, 550,610.22 and 244,076.21 is: 336,719.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,118.11 : 550,610.22 = 244,076.21 : x
  2. Step 2: Convert to fraction form
    399,118.11/550,610.22 = 244,076.21/x
  3. Step 3: Cross multiply
    399,118.11x = 550,610.22 × 244,076.21
  4. Step 4: Simplify right side
    399,118.11x = 134,390,855,684.87
  5. Step 5: Solve for x
    x = 134,390,855,684.87/399,118.11
  6. Step 6: Final answer
    x = 336,719.51

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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.