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Finding the Fourth Proportional to 275,568,570.40, 413,352,855.60 and 247,508,485.60

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Solution

The fourth proportional to 275,568,570.40, 413,352,855.60 and 247,508,485.60 is: 371,262,728.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,568,570.40 : 413,352,855.60 = 247,508,485.60 : x
  2. Step 2: Convert to fraction form
    275,568,570.40/413,352,855.60 = 247,508,485.60/x
  3. Step 3: Cross multiply
    275,568,570.40x = 413,352,855.60 × 247,508,485.60
  4. Step 4: Simplify right side
    275,568,570.40x = 102,308,339,307,991,488
  5. Step 5: Solve for x
    x = 102,308,339,307,991,488/275,568,570.40
  6. Step 6: Final answer
    x = 371,262,728.40

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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.