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Finding the Fourth Proportional to 492,536.67, 738,846.90 and 155,487.15

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Solution

The fourth proportional to 492,536.67, 738,846.90 and 155,487.15 is: 233,243.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,536.67 : 738,846.90 = 155,487.15 : x
  2. Step 2: Convert to fraction form
    492,536.67/738,846.90 = 155,487.15/x
  3. Step 3: Cross multiply
    492,536.67x = 738,846.90 × 155,487.15
  4. Step 4: Simplify right side
    492,536.67x = 114,881,198,767.34
  5. Step 5: Solve for x
    x = 114,881,198,767.34/492,536.67
  6. Step 6: Final answer
    x = 233,243.95

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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.