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Finding the Fourth Proportional to 550,974.60, 826,461.90 and 196,000.20

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Solution

The fourth proportional to 550,974.60, 826,461.90 and 196,000.20 is: 294,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,974.60 : 826,461.90 = 196,000.20 : x
  2. Step 2: Convert to fraction form
    550,974.60/826,461.90 = 196,000.20/x
  3. Step 3: Cross multiply
    550,974.60x = 826,461.90 × 196,000.20
  4. Step 4: Simplify right side
    550,974.60x = 161,986,697,692.38
  5. Step 5: Solve for x
    x = 161,986,697,692.38/550,974.60
  6. Step 6: Final answer
    x = 294,000.30

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Double scale
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Similar ratio
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1.5x scale

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.