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Finding the Fourth Proportional to 388,339,750.20, 582,509,625.30 and 235,955,033.40

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Solution

The fourth proportional to 388,339,750.20, 582,509,625.30 and 235,955,033.40 is: 353,932,550.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,339,750.20 : 582,509,625.30 = 235,955,033.40 : x
  2. Step 2: Convert to fraction form
    388,339,750.20/582,509,625.30 = 235,955,033.40/x
  3. Step 3: Cross multiply
    388,339,750.20x = 582,509,625.30 × 235,955,033.40
  4. Step 4: Simplify right side
    388,339,750.20x = 137,446,078,093,482,976
  5. Step 5: Solve for x
    x = 137,446,078,093,482,976/388,339,750.20
  6. Step 6: Final answer
    x = 353,932,550.10

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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.