Home / 643,195.83-964,933.05-193,879.11

Finding the Fourth Proportional to 643,195.83, 964,933.05 and 193,879.11

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Solution

The fourth proportional to 643,195.83, 964,933.05 and 193,879.11 is: 290,860.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,195.83 : 964,933.05 = 193,879.11 : x
  2. Step 2: Convert to fraction form
    643,195.83/964,933.05 = 193,879.11/x
  3. Step 3: Cross multiply
    643,195.83x = 964,933.05 × 193,879.11
  4. Step 4: Simplify right side
    643,195.83x = 187,080,360,943.59
  5. Step 5: Solve for x
    x = 187,080,360,943.59/643,195.83
  6. Step 6: Final answer
    x = 290,860.66

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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.