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Finding the Fourth Proportional to 492,158.61, 738,143.49 and 207,755.64

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Solution

The fourth proportional to 492,158.61, 738,143.49 and 207,755.64 is: 311,593.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,158.61 : 738,143.49 = 207,755.64 : x
  2. Step 2: Convert to fraction form
    492,158.61/738,143.49 = 207,755.64/x
  3. Step 3: Cross multiply
    492,158.61x = 738,143.49 × 207,755.64
  4. Step 4: Simplify right side
    492,158.61x = 153,353,473,176.78
  5. Step 5: Solve for x
    x = 153,353,473,176.78/492,158.61
  6. Step 6: Final answer
    x = 311,593.60

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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.