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Finding the Fourth Proportional to 2,574,264,471.90, 3,861,396,707.85 and 850,978,455.90

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Solution

The fourth proportional to 2,574,264,471.90, 3,861,396,707.85 and 850,978,455.90 is: 1,276,467,683.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,574,264,471.90 : 3,861,396,707.85 = 850,978,455.90 : x
  2. Step 2: Convert to fraction form
    2,574,264,471.90/3,861,396,707.85 = 850,978,455.90/x
  3. Step 3: Cross multiply
    2,574,264,471.90x = 3,861,396,707.85 × 850,978,455.90
  4. Step 4: Simplify right side
    2,574,264,471.90x = 3,285,965,408,063,536,128
  5. Step 5: Solve for x
    x = 3,285,965,408,063,536,128/2,574,264,471.90
  6. Step 6: Final answer
    x = 1,276,467,683.85

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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.