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Finding the Fourth Proportional to 616,910.80, 925,366.20 and 196,229.20

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Solution

The fourth proportional to 616,910.80, 925,366.20 and 196,229.20 is: 294,343.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,910.80 : 925,366.20 = 196,229.20 : x
  2. Step 2: Convert to fraction form
    616,910.80/925,366.20 = 196,229.20/x
  3. Step 3: Cross multiply
    616,910.80x = 925,366.20 × 196,229.20
  4. Step 4: Simplify right side
    616,910.80x = 181,583,869,133.04
  5. Step 5: Solve for x
    x = 181,583,869,133.04/616,910.80
  6. Step 6: Final answer
    x = 294,343.80

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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.