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Finding the Fourth Proportional to 578,907.72, 798,869.52 and 324,245.88

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Solution

The fourth proportional to 578,907.72, 798,869.52 and 324,245.88 is: 447,446.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,907.72 : 798,869.52 = 324,245.88 : x
  2. Step 2: Convert to fraction form
    578,907.72/798,869.52 = 324,245.88/x
  3. Step 3: Cross multiply
    578,907.72x = 798,869.52 × 324,245.88
  4. Step 4: Simplify right side
    578,907.72x = 259,030,150,517.58
  5. Step 5: Solve for x
    x = 259,030,150,517.58/578,907.72
  6. Step 6: Final answer
    x = 447,446.36

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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.