Home / 605,755.20-908,414.10-306,136.20

Finding the Fourth Proportional to 605,755.20, 908,414.10 and 306,136.20

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Solution

The fourth proportional to 605,755.20, 908,414.10 and 306,136.20 is: 459,093.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,755.20 : 908,414.10 = 306,136.20 : x
  2. Step 2: Convert to fraction form
    605,755.20/908,414.10 = 306,136.20/x
  3. Step 3: Cross multiply
    605,755.20x = 908,414.10 × 306,136.20
  4. Step 4: Simplify right side
    605,755.20x = 278,098,440,600.42
  5. Step 5: Solve for x
    x = 278,098,440,600.42/605,755.20
  6. Step 6: Final answer
    x = 459,093.77

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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.