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Finding the Fourth Proportional to 587,796.89, 881,944.94 and 321,246

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Solution

The fourth proportional to 587,796.89, 881,944.94 and 321,246 is: 482,005.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,796.89 : 881,944.94 = 321,246 : x
  2. Step 2: Convert to fraction form
    587,796.89/881,944.94 = 321,246/x
  3. Step 3: Cross multiply
    587,796.89x = 881,944.94 × 321,246
  4. Step 4: Simplify right side
    587,796.89x = 283,321,284,998.36
  5. Step 5: Solve for x
    x = 283,321,284,998.36/587,796.89
  6. Step 6: Final answer
    x = 482,005.42

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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.