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Finding the Fourth Proportional to 394,206.67, 591,683.55 and 243,992.53

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Solution

The fourth proportional to 394,206.67, 591,683.55 and 243,992.53 is: 366,220.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,206.67 : 591,683.55 = 243,992.53 : x
  2. Step 2: Convert to fraction form
    394,206.67/591,683.55 = 243,992.53/x
  3. Step 3: Cross multiply
    394,206.67x = 591,683.55 × 243,992.53
  4. Step 4: Simplify right side
    394,206.67x = 144,366,366,323.88
  5. Step 5: Solve for x
    x = 144,366,366,323.88/394,206.67
  6. Step 6: Final answer
    x = 366,220.00

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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.