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Finding the Fourth Proportional to 551,372.70, 827,059.05 and 270,831.90

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Solution

The fourth proportional to 551,372.70, 827,059.05 and 270,831.90 is: 406,247.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,372.70 : 827,059.05 = 270,831.90 : x
  2. Step 2: Convert to fraction form
    551,372.70/827,059.05 = 270,831.90/x
  3. Step 3: Cross multiply
    551,372.70x = 827,059.05 × 270,831.90
  4. Step 4: Simplify right side
    551,372.70x = 223,993,973,923.70
  5. Step 5: Solve for x
    x = 223,993,973,923.70/551,372.70
  6. Step 6: Final answer
    x = 406,247.85

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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.