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Finding the Fourth Proportional to 268,490,999.70, 376,907,766.30 and 268,490,999.70

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Solution

The fourth proportional to 268,490,999.70, 376,907,766.30 and 268,490,999.70 is: 376,907,766.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,490,999.70 : 376,907,766.30 = 268,490,999.70 : x
  2. Step 2: Convert to fraction form
    268,490,999.70/376,907,766.30 = 268,490,999.70/x
  3. Step 3: Cross multiply
    268,490,999.70x = 376,907,766.30 × 268,490,999.70
  4. Step 4: Simplify right side
    268,490,999.70x = 101,196,342,968,580,976
  5. Step 5: Solve for x
    x = 101,196,342,968,580,976/268,490,999.70
  6. Step 6: Final answer
    x = 376,907,766.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.