Home / 805,732.50-1,111,942.56-443,190.08

Finding the Fourth Proportional to 805,732.50, 1,111,942.56 and 443,190.08

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Solution

The fourth proportional to 805,732.50, 1,111,942.56 and 443,190.08 is: 611,619.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,732.50 : 1,111,942.56 = 443,190.08 : x
  2. Step 2: Convert to fraction form
    805,732.50/1,111,942.56 = 443,190.08/x
  3. Step 3: Cross multiply
    805,732.50x = 1,111,942.56 × 443,190.08
  4. Step 4: Simplify right side
    805,732.50x = 492,801,912,121.81
  5. Step 5: Solve for x
    x = 492,801,912,121.81/805,732.50
  6. Step 6: Final answer
    x = 611,619.75

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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.