Home / 505,764.80-758,544.22-185,806.70

Finding the Fourth Proportional to 505,764.80, 758,544.22 and 185,806.70

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Solution

The fourth proportional to 505,764.80, 758,544.22 and 185,806.70 is: 278,672.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,764.80 : 758,544.22 = 185,806.70 : x
  2. Step 2: Convert to fraction form
    505,764.80/758,544.22 = 185,806.70/x
  3. Step 3: Cross multiply
    505,764.80x = 758,544.22 × 185,806.70
  4. Step 4: Simplify right side
    505,764.80x = 140,942,598,322.27
  5. Step 5: Solve for x
    x = 140,942,598,322.27/505,764.80
  6. Step 6: Final answer
    x = 278,672.22

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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.