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Finding the Fourth Proportional to 490,338.66, 734,137.68 and 264,891.41

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Solution

The fourth proportional to 490,338.66, 734,137.68 and 264,891.41 is: 396,596.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,338.66 : 734,137.68 = 264,891.41 : x
  2. Step 2: Convert to fraction form
    490,338.66/734,137.68 = 264,891.41/x
  3. Step 3: Cross multiply
    490,338.66x = 734,137.68 × 264,891.41
  4. Step 4: Simplify right side
    490,338.66x = 194,466,767,904.51
  5. Step 5: Solve for x
    x = 194,466,767,904.51/490,338.66
  6. Step 6: Final answer
    x = 396,596.85

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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.