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Finding the Fourth Proportional to 492,396.88, 738,694.68 and 155,490.16

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Solution

The fourth proportional to 492,396.88, 738,694.68 and 155,490.16 is: 233,266.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,396.88 : 738,694.68 = 155,490.16 : x
  2. Step 2: Convert to fraction form
    492,396.88/738,694.68 = 155,490.16/x
  3. Step 3: Cross multiply
    492,396.88x = 738,694.68 × 155,490.16
  4. Step 4: Simplify right side
    492,396.88x = 114,859,753,984.35
  5. Step 5: Solve for x
    x = 114,859,753,984.35/492,396.88
  6. Step 6: Final answer
    x = 233,266.62

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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.