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Finding the Fourth Proportional to 1,331,963,414.70, 1,997,945,122.05 and 1,331,963,414.70

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Solution

The fourth proportional to 1,331,963,414.70, 1,997,945,122.05 and 1,331,963,414.70 is: 1,997,945,122.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,963,414.70 : 1,997,945,122.05 = 1,331,963,414.70 : x
  2. Step 2: Convert to fraction form
    1,331,963,414.70/1,997,945,122.05 = 1,331,963,414.70/x
  3. Step 3: Cross multiply
    1,331,963,414.70x = 1,997,945,122.05 × 1,331,963,414.70
  4. Step 4: Simplify right side
    1,331,963,414.70x = 2,661,189,807,148,926,464
  5. Step 5: Solve for x
    x = 2,661,189,807,148,926,464/1,331,963,414.70
  6. Step 6: Final answer
    x = 1,997,945,122.05

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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.