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Finding the Fourth Proportional to 492,243.66, 738,381.29 and 155,287.44

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Solution

The fourth proportional to 492,243.66, 738,381.29 and 155,287.44 is: 232,936.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,243.66 : 738,381.29 = 155,287.44 : x
  2. Step 2: Convert to fraction form
    492,243.66/738,381.29 = 155,287.44/x
  3. Step 3: Cross multiply
    492,243.66x = 738,381.29 × 155,287.44
  4. Step 4: Simplify right side
    492,243.66x = 114,661,339,491.56
  5. Step 5: Solve for x
    x = 114,661,339,491.56/492,243.66
  6. Step 6: Final answer
    x = 232,936.14

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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.