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Finding the Fourth Proportional to 959,647,650.30, 1,437,319,139.40 and 959,647,650.30

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Solution

The fourth proportional to 959,647,650.30, 1,437,319,139.40 and 959,647,650.30 is: 1,437,319,139.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,647,650.30 : 1,437,319,139.40 = 959,647,650.30 : x
  2. Step 2: Convert to fraction form
    959,647,650.30/1,437,319,139.40 = 959,647,650.30/x
  3. Step 3: Cross multiply
    959,647,650.30x = 1,437,319,139.40 × 959,647,650.30
  4. Step 4: Simplify right side
    959,647,650.30x = 1,379,319,934,856,428,288
  5. Step 5: Solve for x
    x = 1,379,319,934,856,428,288/959,647,650.30
  6. Step 6: Final answer
    x = 1,437,319,139.40

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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.