Home / 813,824.33-1,220,889.60-327,543.66

Finding the Fourth Proportional to 813,824.33, 1,220,889.60 and 327,543.66

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Solution

The fourth proportional to 813,824.33, 1,220,889.60 and 327,543.66 is: 491,377.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,824.33 : 1,220,889.60 = 327,543.66 : x
  2. Step 2: Convert to fraction form
    813,824.33/1,220,889.60 = 327,543.66/x
  3. Step 3: Cross multiply
    813,824.33x = 1,220,889.60 × 327,543.66
  4. Step 4: Simplify right side
    813,824.33x = 399,894,648,039.94
  5. Step 5: Solve for x
    x = 399,894,648,039.94/813,824.33
  6. Step 6: Final answer
    x = 491,377.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.