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Finding the Fourth Proportional to 879,708,608.56, 1,214,000,706.36 and 488,568,021.04

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Solution

The fourth proportional to 879,708,608.56, 1,214,000,706.36 and 488,568,021.04 is: 674,225,438.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,708,608.56 : 1,214,000,706.36 = 488,568,021.04 : x
  2. Step 2: Convert to fraction form
    879,708,608.56/1,214,000,706.36 = 488,568,021.04/x
  3. Step 3: Cross multiply
    879,708,608.56x = 1,214,000,706.36 × 488,568,021.04
  4. Step 4: Simplify right side
    879,708,608.56x = 593,121,922,647,467,264
  5. Step 5: Solve for x
    x = 593,121,922,647,467,264/879,708,608.56
  6. Step 6: Final answer
    x = 674,225,438.83

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.