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Finding the Fourth Proportional to 394,501.80, 591,363.90 and 194,658.60

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Solution

The fourth proportional to 394,501.80, 591,363.90 and 194,658.60 is: 291,796.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,501.80 : 591,363.90 = 194,658.60 : x
  2. Step 2: Convert to fraction form
    394,501.80/591,363.90 = 194,658.60/x
  3. Step 3: Cross multiply
    394,501.80x = 591,363.90 × 194,658.60
  4. Step 4: Simplify right side
    394,501.80x = 115,114,068,864.54
  5. Step 5: Solve for x
    x = 115,114,068,864.54/394,501.80
  6. Step 6: Final answer
    x = 291,796.05

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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.