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Finding the Fourth Proportional to 403,599,793.80, 605,399,690.70 and 367,886,958.60

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Solution

The fourth proportional to 403,599,793.80, 605,399,690.70 and 367,886,958.60 is: 551,830,437.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,599,793.80 : 605,399,690.70 = 367,886,958.60 : x
  2. Step 2: Convert to fraction form
    403,599,793.80/605,399,690.70 = 367,886,958.60/x
  3. Step 3: Cross multiply
    403,599,793.80x = 605,399,690.70 × 367,886,958.60
  4. Step 4: Simplify right side
    403,599,793.80x = 222,718,650,949,003,744
  5. Step 5: Solve for x
    x = 222,718,650,949,003,744/403,599,793.80
  6. Step 6: Final answer
    x = 551,830,437.90

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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.