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Finding the Fourth Proportional to 492,490.80, 738,736.20 and 176,906.70

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Solution

The fourth proportional to 492,490.80, 738,736.20 and 176,906.70 is: 265,360.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,490.80 : 738,736.20 = 176,906.70 : x
  2. Step 2: Convert to fraction form
    492,490.80/738,736.20 = 176,906.70/x
  3. Step 3: Cross multiply
    492,490.80x = 738,736.20 × 176,906.70
  4. Step 4: Simplify right side
    492,490.80x = 130,687,383,312.54
  5. Step 5: Solve for x
    x = 130,687,383,312.54/492,490.80
  6. Step 6: Final answer
    x = 265,360.05

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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.