Home / 639,414.49-882,392.07-352,934.65

Finding the Fourth Proportional to 639,414.49, 882,392.07 and 352,934.65

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Solution

The fourth proportional to 639,414.49, 882,392.07 and 352,934.65 is: 487,049.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,414.49 : 882,392.07 = 352,934.65 : x
  2. Step 2: Convert to fraction form
    639,414.49/882,392.07 = 352,934.65/x
  3. Step 3: Cross multiply
    639,414.49x = 882,392.07 × 352,934.65
  4. Step 4: Simplify right side
    639,414.49x = 311,426,734,623.55
  5. Step 5: Solve for x
    x = 311,426,734,623.55/639,414.49
  6. Step 6: Final answer
    x = 487,049.86

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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.