Home / 1,185,298.71-1,635,716.34-641,434.36

Finding the Fourth Proportional to 1,185,298.71, 1,635,716.34 and 641,434.36

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Solution

The fourth proportional to 1,185,298.71, 1,635,716.34 and 641,434.36 is: 885,181.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,298.71 : 1,635,716.34 = 641,434.36 : x
  2. Step 2: Convert to fraction form
    1,185,298.71/1,635,716.34 = 641,434.36/x
  3. Step 3: Cross multiply
    1,185,298.71x = 1,635,716.34 × 641,434.36
  4. Step 4: Simplify right side
    1,185,298.71x = 1,049,204,663,689.44
  5. Step 5: Solve for x
    x = 1,049,204,663,689.44/1,185,298.71
  6. Step 6: Final answer
    x = 885,181.65

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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.