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Finding the Fourth Proportional to 959,647,653.80, 1,437,319,144.65 and 959,647,653.80

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Solution

The fourth proportional to 959,647,653.80, 1,437,319,144.65 and 959,647,653.80 is: 1,437,319,144.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,647,653.80 : 1,437,319,144.65 = 959,647,653.80 : x
  2. Step 2: Convert to fraction form
    959,647,653.80/1,437,319,144.65 = 959,647,653.80/x
  3. Step 3: Cross multiply
    959,647,653.80x = 1,437,319,144.65 × 959,647,653.80
  4. Step 4: Simplify right side
    959,647,653.80x = 1,379,319,944,925,195,264
  5. Step 5: Solve for x
    x = 1,379,319,944,925,195,264/959,647,653.80
  6. Step 6: Final answer
    x = 1,437,319,144.65

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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.