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Finding the Fourth Proportional to 494,803.13, 682,909.98 and 339,626.90

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Solution

The fourth proportional to 494,803.13, 682,909.98 and 339,626.90 is: 468,741.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,803.13 : 682,909.98 = 339,626.90 : x
  2. Step 2: Convert to fraction form
    494,803.13/682,909.98 = 339,626.90/x
  3. Step 3: Cross multiply
    494,803.13x = 682,909.98 × 339,626.90
  4. Step 4: Simplify right side
    494,803.13x = 231,934,603,268.48
  5. Step 5: Solve for x
    x = 231,934,603,268.48/494,803.13
  6. Step 6: Final answer
    x = 468,741.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.