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Finding the Fourth Proportional to 492,300.11, 738,028.94 and 188,911.97

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Solution

The fourth proportional to 492,300.11, 738,028.94 and 188,911.97 is: 283,206.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,300.11 : 738,028.94 = 188,911.97 : x
  2. Step 2: Convert to fraction form
    492,300.11/738,028.94 = 188,911.97/x
  3. Step 3: Cross multiply
    492,300.11x = 738,028.94 × 188,911.97
  4. Step 4: Simplify right side
    492,300.11x = 139,422,501,872.92
  5. Step 5: Solve for x
    x = 139,422,501,872.92/492,300.11
  6. Step 6: Final answer
    x = 283,206.32

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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.