Home / 263,004.99-394,519.20-80,622.35

Finding the Fourth Proportional to 263,004.99, 394,519.20 and 80,622.35

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Solution

The fourth proportional to 263,004.99, 394,519.20 and 80,622.35 is: 120,937.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,004.99 : 394,519.20 = 80,622.35 : x
  2. Step 2: Convert to fraction form
    263,004.99/394,519.20 = 80,622.35/x
  3. Step 3: Cross multiply
    263,004.99x = 394,519.20 × 80,622.35
  4. Step 4: Simplify right side
    263,004.99x = 31,807,063,051.52
  5. Step 5: Solve for x
    x = 31,807,063,051.52/263,004.99
  6. Step 6: Final answer
    x = 120,937.11

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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.