Home / 639,523.80-882,545.67-353,046.24

Finding the Fourth Proportional to 639,523.80, 882,545.67 and 353,046.24

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Solution

The fourth proportional to 639,523.80, 882,545.67 and 353,046.24 is: 487,205.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,523.80 : 882,545.67 = 353,046.24 : x
  2. Step 2: Convert to fraction form
    639,523.80/882,545.67 = 353,046.24/x
  3. Step 3: Cross multiply
    639,523.80x = 882,545.67 × 353,046.24
  4. Step 4: Simplify right side
    639,523.80x = 311,579,431,745.53
  5. Step 5: Solve for x
    x = 311,579,431,745.53/639,523.80
  6. Step 6: Final answer
    x = 487,205.37

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Similar ratio
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1.5x scale

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.