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Finding the Fourth Proportional to 680,773.53, 939,593.46 and 394,293.54

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Solution

The fourth proportional to 680,773.53, 939,593.46 and 394,293.54 is: 544,198.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,773.53 : 939,593.46 = 394,293.54 : x
  2. Step 2: Convert to fraction form
    680,773.53/939,593.46 = 394,293.54/x
  3. Step 3: Cross multiply
    680,773.53x = 939,593.46 × 394,293.54
  4. Step 4: Simplify right side
    680,773.53x = 370,475,631,504.25
  5. Step 5: Solve for x
    x = 370,475,631,504.25/680,773.53
  6. Step 6: Final answer
    x = 544,198.06

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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.