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Finding the Fourth Proportional to 322,407.40, 483,027.90 and 275,751.40

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Solution

The fourth proportional to 322,407.40, 483,027.90 and 275,751.40 is: 413,128.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,407.40 : 483,027.90 = 275,751.40 : x
  2. Step 2: Convert to fraction form
    322,407.40/483,027.90 = 275,751.40/x
  3. Step 3: Cross multiply
    322,407.40x = 483,027.90 × 275,751.40
  4. Step 4: Simplify right side
    322,407.40x = 133,195,619,664.06
  5. Step 5: Solve for x
    x = 133,195,619,664.06/322,407.40
  6. Step 6: Final answer
    x = 413,128.30

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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.