Home / 885,741,391.60-1,328,612,087.40-656,158,879.60

Finding the Fourth Proportional to 885,741,391.60, 1,328,612,087.40 and 656,158,879.60

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Solution

The fourth proportional to 885,741,391.60, 1,328,612,087.40 and 656,158,879.60 is: 984,238,319.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,741,391.60 : 1,328,612,087.40 = 656,158,879.60 : x
  2. Step 2: Convert to fraction form
    885,741,391.60/1,328,612,087.40 = 656,158,879.60/x
  3. Step 3: Cross multiply
    885,741,391.60x = 1,328,612,087.40 × 656,158,879.60
  4. Step 4: Simplify right side
    885,741,391.60x = 871,780,618,691,401,344
  5. Step 5: Solve for x
    x = 871,780,618,691,401,344/885,741,391.60
  6. Step 6: Final answer
    x = 984,238,319.40

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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.