Home / 1,205,198.21-1,663,168.95-661,343.10

Finding the Fourth Proportional to 1,205,198.21, 1,663,168.95 and 661,343.10

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Solution

The fourth proportional to 1,205,198.21, 1,663,168.95 and 661,343.10 is: 912,650.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,198.21 : 1,663,168.95 = 661,343.10 : x
  2. Step 2: Convert to fraction form
    1,205,198.21/1,663,168.95 = 661,343.10/x
  3. Step 3: Cross multiply
    1,205,198.21x = 1,663,168.95 × 661,343.10
  4. Step 4: Simplify right side
    1,205,198.21x = 1,099,925,309,216.74
  5. Step 5: Solve for x
    x = 1,099,925,309,216.74/1,205,198.21
  6. Step 6: Final answer
    x = 912,650.97

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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.