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Finding the Fourth Proportional to 461,745.30, 691,451.55 and 303,114.90

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Solution

The fourth proportional to 461,745.30, 691,451.55 and 303,114.90 is: 453,906.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,745.30 : 691,451.55 = 303,114.90 : x
  2. Step 2: Convert to fraction form
    461,745.30/691,451.55 = 303,114.90/x
  3. Step 3: Cross multiply
    461,745.30x = 691,451.55 × 303,114.90
  4. Step 4: Simplify right side
    461,745.30x = 209,589,267,433.10
  5. Step 5: Solve for x
    x = 209,589,267,433.10/461,745.30
  6. Step 6: Final answer
    x = 453,906.66

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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.