Home / 639,535.40-882,553.43-353,049.33

Finding the Fourth Proportional to 639,535.40, 882,553.43 and 353,049.33

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Solution

The fourth proportional to 639,535.40, 882,553.43 and 353,049.33 is: 487,205.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,535.40 : 882,553.43 = 353,049.33 : x
  2. Step 2: Convert to fraction form
    639,535.40/882,553.43 = 353,049.33/x
  3. Step 3: Cross multiply
    639,535.40x = 882,553.43 × 353,049.33
  4. Step 4: Simplify right side
    639,535.40x = 311,584,895,385.46
  5. Step 5: Solve for x
    x = 311,584,895,385.46/639,535.40
  6. Step 6: Final answer
    x = 487,205.08

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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.