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Finding the Fourth Proportional to 534,991.80, 801,321.30 and 441,679.80

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Solution

The fourth proportional to 534,991.80, 801,321.30 and 441,679.80 is: 661,556.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,991.80 : 801,321.30 = 441,679.80 : x
  2. Step 2: Convert to fraction form
    534,991.80/801,321.30 = 441,679.80/x
  3. Step 3: Cross multiply
    534,991.80x = 801,321.30 × 441,679.80
  4. Step 4: Simplify right side
    534,991.80x = 353,927,431,519.74
  5. Step 5: Solve for x
    x = 353,927,431,519.74/534,991.80
  6. Step 6: Final answer
    x = 661,556.74

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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.