Home / 805,865.53-1,112,097.05-443,316.97

Finding the Fourth Proportional to 805,865.53, 1,112,097.05 and 443,316.97

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Solution

The fourth proportional to 805,865.53, 1,112,097.05 and 443,316.97 is: 611,778.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,865.53 : 1,112,097.05 = 443,316.97 : x
  2. Step 2: Convert to fraction form
    805,865.53/1,112,097.05 = 443,316.97/x
  3. Step 3: Cross multiply
    805,865.53x = 1,112,097.05 × 443,316.97
  4. Step 4: Simplify right side
    805,865.53x = 493,011,494,551.94
  5. Step 5: Solve for x
    x = 493,011,494,551.94/805,865.53
  6. Step 6: Final answer
    x = 611,778.86

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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.