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Finding the Fourth Proportional to 616,993.21, 925,431.49 and 196,194.97

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Solution

The fourth proportional to 616,993.21, 925,431.49 and 196,194.97 is: 294,273.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,993.21 : 925,431.49 = 196,194.97 : x
  2. Step 2: Convert to fraction form
    616,993.21/925,431.49 = 196,194.97/x
  3. Step 3: Cross multiply
    616,993.21x = 925,431.49 × 196,194.97
  4. Step 4: Simplify right side
    616,993.21x = 181,565,003,417.61
  5. Step 5: Solve for x
    x = 181,565,003,417.61/616,993.21
  6. Step 6: Final answer
    x = 294,273.91

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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.