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Finding the Fourth Proportional to 492,502.80, 738,868.32 and 155,576.88

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Solution

The fourth proportional to 492,502.80, 738,868.32 and 155,576.88 is: 233,401.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,502.80 : 738,868.32 = 155,576.88 : x
  2. Step 2: Convert to fraction form
    492,502.80/738,868.32 = 155,576.88/x
  3. Step 3: Cross multiply
    492,502.80x = 738,868.32 × 155,576.88
  4. Step 4: Simplify right side
    492,502.80x = 114,950,827,956.44
  5. Step 5: Solve for x
    x = 114,950,827,956.44/492,502.80
  6. Step 6: Final answer
    x = 233,401.37

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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.