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Finding the Fourth Proportional to 467,138.80, 700,708.20 and 443,810.80

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Solution

The fourth proportional to 467,138.80, 700,708.20 and 443,810.80 is: 665,716.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,138.80 : 700,708.20 = 443,810.80 : x
  2. Step 2: Convert to fraction form
    467,138.80/700,708.20 = 443,810.80/x
  3. Step 3: Cross multiply
    467,138.80x = 700,708.20 × 443,810.80
  4. Step 4: Simplify right side
    467,138.80x = 310,981,866,808.56
  5. Step 5: Solve for x
    x = 310,981,866,808.56/467,138.80
  6. Step 6: Final answer
    x = 665,716.20

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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.