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Finding the Fourth Proportional to 554,115.40, 831,173.10 and 199,165.30

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Solution

The fourth proportional to 554,115.40, 831,173.10 and 199,165.30 is: 298,747.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,115.40 : 831,173.10 = 199,165.30 : x
  2. Step 2: Convert to fraction form
    554,115.40/831,173.10 = 199,165.30/x
  3. Step 3: Cross multiply
    554,115.40x = 831,173.10 × 199,165.30
  4. Step 4: Simplify right side
    554,115.40x = 165,540,839,813.43
  5. Step 5: Solve for x
    x = 165,540,839,813.43/554,115.40
  6. Step 6: Final answer
    x = 298,747.95

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Double scale
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Similar ratio
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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.