Home / 699,857.24-965,833.72-393,953.36

Finding the Fourth Proportional to 699,857.24, 965,833.72 and 393,953.36

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Solution

The fourth proportional to 699,857.24, 965,833.72 and 393,953.36 is: 543,672.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,857.24 : 965,833.72 = 393,953.36 : x
  2. Step 2: Convert to fraction form
    699,857.24/965,833.72 = 393,953.36/x
  3. Step 3: Cross multiply
    699,857.24x = 965,833.72 × 393,953.36
  4. Step 4: Simplify right side
    699,857.24x = 380,493,439,195.30
  5. Step 5: Solve for x
    x = 380,493,439,195.30/699,857.24
  6. Step 6: Final answer
    x = 543,672.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.