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Finding the Fourth Proportional to 622,775.73, 859,494.03 and 381,217.94

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Solution

The fourth proportional to 622,775.73, 859,494.03 and 381,217.94 is: 526,119.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,775.73 : 859,494.03 = 381,217.94 : x
  2. Step 2: Convert to fraction form
    622,775.73/859,494.03 = 381,217.94/x
  3. Step 3: Cross multiply
    622,775.73x = 859,494.03 × 381,217.94
  4. Step 4: Simplify right side
    622,775.73x = 327,654,541,054.96
  5. Step 5: Solve for x
    x = 327,654,541,054.96/622,775.73
  6. Step 6: Final answer
    x = 526,119.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.