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Finding the Fourth Proportional to 654,861.72, 982,669.14 and 275,752.56

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Solution

The fourth proportional to 654,861.72, 982,669.14 and 275,752.56 is: 413,787.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,861.72 : 982,669.14 = 275,752.56 : x
  2. Step 2: Convert to fraction form
    654,861.72/982,669.14 = 275,752.56/x
  3. Step 3: Cross multiply
    654,861.72x = 982,669.14 × 275,752.56
  4. Step 4: Simplify right side
    654,861.72x = 270,973,530,988.00
  5. Step 5: Solve for x
    x = 270,973,530,988.00/654,861.72
  6. Step 6: Final answer
    x = 413,787.40

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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.