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Finding the Fourth Proportional to 394,501.80, 591,752.70 and 110,191.80

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Solution

The fourth proportional to 394,501.80, 591,752.70 and 110,191.80 is: 165,287.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,501.80 : 591,752.70 = 110,191.80 : x
  2. Step 2: Convert to fraction form
    394,501.80/591,752.70 = 110,191.80/x
  3. Step 3: Cross multiply
    394,501.80x = 591,752.70 × 110,191.80
  4. Step 4: Simplify right side
    394,501.80x = 65,206,295,167.86
  5. Step 5: Solve for x
    x = 65,206,295,167.86/394,501.80
  6. Step 6: Final answer
    x = 165,287.70

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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.