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Finding the Fourth Proportional to 580,391.66, 800,940.49 and 325,742.84

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Solution

The fourth proportional to 580,391.66, 800,940.49 and 325,742.84 is: 449,525.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,391.66 : 800,940.49 = 325,742.84 : x
  2. Step 2: Convert to fraction form
    580,391.66/800,940.49 = 325,742.84/x
  3. Step 3: Cross multiply
    580,391.66x = 800,940.49 × 325,742.84
  4. Step 4: Simplify right side
    580,391.66x = 260,900,633,198.49
  5. Step 5: Solve for x
    x = 260,900,633,198.49/580,391.66
  6. Step 6: Final answer
    x = 449,525.13

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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.