Home / 1,205,213.92-1,663,190.64-661,358.88

Finding the Fourth Proportional to 1,205,213.92, 1,663,190.64 and 661,358.88

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Solution

The fourth proportional to 1,205,213.92, 1,663,190.64 and 661,358.88 is: 912,672.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,213.92 : 1,663,190.64 = 661,358.88 : x
  2. Step 2: Convert to fraction form
    1,205,213.92/1,663,190.64 = 661,358.88/x
  3. Step 3: Cross multiply
    1,205,213.92x = 1,663,190.64 × 661,358.88
  4. Step 4: Simplify right side
    1,205,213.92x = 1,099,965,898,896.88
  5. Step 5: Solve for x
    x = 1,099,965,898,896.88/1,205,213.92
  6. Step 6: Final answer
    x = 912,672.75

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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.