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Finding the Fourth Proportional to 445,860,010.20, 668,790,015.30 and 445,860,010.20

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Solution

The fourth proportional to 445,860,010.20, 668,790,015.30 and 445,860,010.20 is: 668,790,015.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,860,010.20 : 668,790,015.30 = 445,860,010.20 : x
  2. Step 2: Convert to fraction form
    445,860,010.20/668,790,015.30 = 445,860,010.20/x
  3. Step 3: Cross multiply
    445,860,010.20x = 668,790,015.30 × 445,860,010.20
  4. Step 4: Simplify right side
    445,860,010.20x = 298,186,723,043,316,096
  5. Step 5: Solve for x
    x = 298,186,723,043,316,096/445,860,010.20
  6. Step 6: Final answer
    x = 668,790,015.30

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Similar ratio
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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.