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Finding the Fourth Proportional to 318,825.70, 477,713.62 and 222,772.66

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Solution

The fourth proportional to 318,825.70, 477,713.62 and 222,772.66 is: 333,792.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,825.70 : 477,713.62 = 222,772.66 : x
  2. Step 2: Convert to fraction form
    318,825.70/477,713.62 = 222,772.66/x
  3. Step 3: Cross multiply
    318,825.70x = 477,713.62 × 222,772.66
  4. Step 4: Simplify right side
    318,825.70x = 106,421,533,845.63
  5. Step 5: Solve for x
    x = 106,421,533,845.63/318,825.70
  6. Step 6: Final answer
    x = 333,792.21

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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.