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Finding the Fourth Proportional to 636,982.20, 955,473.30 and 193,692.60

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Solution

The fourth proportional to 636,982.20, 955,473.30 and 193,692.60 is: 290,538.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,982.20 : 955,473.30 = 193,692.60 : x
  2. Step 2: Convert to fraction form
    636,982.20/955,473.30 = 193,692.60/x
  3. Step 3: Cross multiply
    636,982.20x = 955,473.30 × 193,692.60
  4. Step 4: Simplify right side
    636,982.20x = 185,068,107,707.58
  5. Step 5: Solve for x
    x = 185,068,107,707.58/636,982.20
  6. Step 6: Final answer
    x = 290,538.90

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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.