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Finding the Fourth Proportional to 492,090.90, 737,553.15 and 255,311.70

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Solution

The fourth proportional to 492,090.90, 737,553.15 and 255,311.70 is: 382,664.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,090.90 : 737,553.15 = 255,311.70 : x
  2. Step 2: Convert to fraction form
    492,090.90/737,553.15 = 255,311.70/x
  3. Step 3: Cross multiply
    492,090.90x = 737,553.15 × 255,311.70
  4. Step 4: Simplify right side
    492,090.90x = 188,305,948,566.86
  5. Step 5: Solve for x
    x = 188,305,948,566.86/492,090.90
  6. Step 6: Final answer
    x = 382,664.97

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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.