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Finding the Fourth Proportional to 262,493,288.40, 393,739,932.60 and 262,493,288.40

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Solution

The fourth proportional to 262,493,288.40, 393,739,932.60 and 262,493,288.40 is: 393,739,932.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,493,288.40 : 393,739,932.60 = 262,493,288.40 : x
  2. Step 2: Convert to fraction form
    262,493,288.40/393,739,932.60 = 262,493,288.40/x
  3. Step 3: Cross multiply
    262,493,288.40x = 393,739,932.60 × 262,493,288.40
  4. Step 4: Simplify right side
    262,493,288.40x = 103,354,089,682,568,368
  5. Step 5: Solve for x
    x = 103,354,089,682,568,368/262,493,288.40
  6. Step 6: Final answer
    x = 393,739,932.60

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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.