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Finding the Fourth Proportional to 815,067,580.60, 1,222,601,370.90 and 815,067,580.60

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Solution

The fourth proportional to 815,067,580.60, 1,222,601,370.90 and 815,067,580.60 is: 1,222,601,370.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,067,580.60 : 1,222,601,370.90 = 815,067,580.60 : x
  2. Step 2: Convert to fraction form
    815,067,580.60/1,222,601,370.90 = 815,067,580.60/x
  3. Step 3: Cross multiply
    815,067,580.60x = 1,222,601,370.90 × 815,067,580.60
  4. Step 4: Simplify right side
    815,067,580.60x = 996,502,741,417,706,368
  5. Step 5: Solve for x
    x = 996,502,741,417,706,368/815,067,580.60
  6. Step 6: Final answer
    x = 1,222,601,370.90

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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.