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Finding the Fourth Proportional to 890,496,092.20, 1,244,146,489.40 and 890,496,092.20

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Solution

The fourth proportional to 890,496,092.20, 1,244,146,489.40 and 890,496,092.20 is: 1,244,146,489.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,496,092.20 : 1,244,146,489.40 = 890,496,092.20 : x
  2. Step 2: Convert to fraction form
    890,496,092.20/1,244,146,489.40 = 890,496,092.20/x
  3. Step 3: Cross multiply
    890,496,092.20x = 1,244,146,489.40 × 890,496,092.20
  4. Step 4: Simplify right side
    890,496,092.20x = 1,107,907,586,935,048,832
  5. Step 5: Solve for x
    x = 1,107,907,586,935,048,832/890,496,092.20
  6. Step 6: Final answer
    x = 1,244,146,489.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.