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Finding the Fourth Proportional to 571,782.82, 856,591.66 and 381,669.96

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Solution

The fourth proportional to 571,782.82, 856,591.66 and 381,669.96 is: 571,782.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,782.82 : 856,591.66 = 381,669.96 : x
  2. Step 2: Convert to fraction form
    571,782.82/856,591.66 = 381,669.96/x
  3. Step 3: Cross multiply
    571,782.82x = 856,591.66 × 381,669.96
  4. Step 4: Simplify right side
    571,782.82x = 326,935,304,608.53
  5. Step 5: Solve for x
    x = 326,935,304,608.53/571,782.82
  6. Step 6: Final answer
    x = 571,782.32

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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.