Home / 1,185,309.68-1,635,732.34-641,445.49

Finding the Fourth Proportional to 1,185,309.68, 1,635,732.34 and 641,445.49

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Solution

The fourth proportional to 1,185,309.68, 1,635,732.34 and 641,445.49 is: 885,197.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,309.68 : 1,635,732.34 = 641,445.49 : x
  2. Step 2: Convert to fraction form
    1,185,309.68/1,635,732.34 = 641,445.49/x
  3. Step 3: Cross multiply
    1,185,309.68x = 1,635,732.34 × 641,445.49
  4. Step 4: Simplify right side
    1,185,309.68x = 1,049,233,141,891.83
  5. Step 5: Solve for x
    x = 1,049,233,141,891.83/1,185,309.68
  6. Step 6: Final answer
    x = 885,197.48

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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.