Home / 1,185,279.65-1,635,685.88-641,415.43

Finding the Fourth Proportional to 1,185,279.65, 1,635,685.88 and 641,415.43

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Solution

The fourth proportional to 1,185,279.65, 1,635,685.88 and 641,415.43 is: 885,153.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,279.65 : 1,635,685.88 = 641,415.43 : x
  2. Step 2: Convert to fraction form
    1,185,279.65/1,635,685.88 = 641,415.43/x
  3. Step 3: Cross multiply
    1,185,279.65x = 1,635,685.88 × 641,415.43
  4. Step 4: Simplify right side
    1,185,279.65x = 1,049,154,162,065.13
  5. Step 5: Solve for x
    x = 1,049,154,162,065.13/1,185,279.65
  6. Step 6: Final answer
    x = 885,153.27

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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.