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Finding the Fourth Proportional to 814,879,245.55, 1,222,318,868.33 and 814,879,245.55

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Solution

The fourth proportional to 814,879,245.55, 1,222,318,868.33 and 814,879,245.55 is: 1,222,318,868.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,879,245.55 : 1,222,318,868.33 = 814,879,245.55 : x
  2. Step 2: Convert to fraction form
    814,879,245.55/1,222,318,868.33 = 814,879,245.55/x
  3. Step 3: Cross multiply
    814,879,245.55x = 1,222,318,868.33 × 814,879,245.55
  4. Step 4: Simplify right side
    814,879,245.55x = 996,042,277,246,280,064
  5. Step 5: Solve for x
    x = 996,042,277,246,280,064/814,879,245.55
  6. Step 6: Final answer
    x = 1,222,318,868.33

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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.