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Finding the Fourth Proportional to 662,648.18, 993,972.12 and 189,333.54

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Solution

The fourth proportional to 662,648.18, 993,972.12 and 189,333.54 is: 284,000.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,648.18 : 993,972.12 = 189,333.54 : x
  2. Step 2: Convert to fraction form
    662,648.18/993,972.12 = 189,333.54/x
  3. Step 3: Cross multiply
    662,648.18x = 993,972.12 × 189,333.54
  4. Step 4: Simplify right side
    662,648.18x = 188,192,263,158.30
  5. Step 5: Solve for x
    x = 188,192,263,158.30/662,648.18
  6. Step 6: Final answer
    x = 284,000.27

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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.