Home / 1,205,198.95-1,663,169.96-661,343.84

Finding the Fourth Proportional to 1,205,198.95, 1,663,169.96 and 661,343.84

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Solution

The fourth proportional to 1,205,198.95, 1,663,169.96 and 661,343.84 is: 912,651.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,198.95 : 1,663,169.96 = 661,343.84 : x
  2. Step 2: Convert to fraction form
    1,205,198.95/1,663,169.96 = 661,343.84/x
  3. Step 3: Cross multiply
    1,205,198.95x = 1,663,169.96 × 661,343.84
  4. Step 4: Simplify right side
    1,205,198.95x = 1,099,927,207,493.44
  5. Step 5: Solve for x
    x = 1,099,927,207,493.44/1,205,198.95
  6. Step 6: Final answer
    x = 912,651.98

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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.