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Finding the Fourth Proportional to 578,761.98, 798,692.17 and 324,113.17

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Solution

The fourth proportional to 578,761.98, 798,692.17 and 324,113.17 is: 447,276.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,761.98 : 798,692.17 = 324,113.17 : x
  2. Step 2: Convert to fraction form
    578,761.98/798,692.17 = 324,113.17/x
  3. Step 3: Cross multiply
    578,761.98x = 798,692.17 × 324,113.17
  4. Step 4: Simplify right side
    578,761.98x = 258,866,653,529.02
  5. Step 5: Solve for x
    x = 258,866,653,529.02/578,761.98
  6. Step 6: Final answer
    x = 447,276.53

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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.