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Finding the Fourth Proportional to 605,772.20, 908,658.30 and 206,863.40

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Solution

The fourth proportional to 605,772.20, 908,658.30 and 206,863.40 is: 310,295.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,772.20 : 908,658.30 = 206,863.40 : x
  2. Step 2: Convert to fraction form
    605,772.20/908,658.30 = 206,863.40/x
  3. Step 3: Cross multiply
    605,772.20x = 908,658.30 × 206,863.40
  4. Step 4: Simplify right side
    605,772.20x = 187,968,145,376.22
  5. Step 5: Solve for x
    x = 187,968,145,376.22/605,772.20
  6. Step 6: Final answer
    x = 310,295.10

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Similar ratio
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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.