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Finding the Fourth Proportional to 333,751.78, 500,771.04 and 221,471.20

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Solution

The fourth proportional to 333,751.78, 500,771.04 and 221,471.20 is: 332,301.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,751.78 : 500,771.04 = 221,471.20 : x
  2. Step 2: Convert to fraction form
    333,751.78/500,771.04 = 221,471.20/x
  3. Step 3: Cross multiply
    333,751.78x = 500,771.04 × 221,471.20
  4. Step 4: Simplify right side
    333,751.78x = 110,906,361,902.12
  5. Step 5: Solve for x
    x = 110,906,361,902.12/333,751.78
  6. Step 6: Final answer
    x = 332,301.94

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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.