Home / 1,185,212.49-1,635,597.57-641,348.28

Finding the Fourth Proportional to 1,185,212.49, 1,635,597.57 and 641,348.28

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Solution

The fourth proportional to 1,185,212.49, 1,635,597.57 and 641,348.28 is: 885,062.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,212.49 : 1,635,597.57 = 641,348.28 : x
  2. Step 2: Convert to fraction form
    1,185,212.49/1,635,597.57 = 641,348.28/x
  3. Step 3: Cross multiply
    1,185,212.49x = 1,635,597.57 × 641,348.28
  4. Step 4: Simplify right side
    1,185,212.49x = 1,048,987,688,291.68
  5. Step 5: Solve for x
    x = 1,048,987,688,291.68/1,185,212.49
  6. Step 6: Final answer
    x = 885,062.97

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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.