Home / 1,185,490.77-1,635,963.12-641,613.65

Finding the Fourth Proportional to 1,185,490.77, 1,635,963.12 and 641,613.65

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Solution

The fourth proportional to 1,185,490.77, 1,635,963.12 and 641,613.65 is: 885,419.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,490.77 : 1,635,963.12 = 641,613.65 : x
  2. Step 2: Convert to fraction form
    1,185,490.77/1,635,963.12 = 641,613.65/x
  3. Step 3: Cross multiply
    1,185,490.77x = 1,635,963.12 × 641,613.65
  4. Step 4: Simplify right side
    1,185,490.77x = 1,049,656,260,508.77
  5. Step 5: Solve for x
    x = 1,049,656,260,508.77/1,185,490.77
  6. Step 6: Final answer
    x = 885,419.18

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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.