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Finding the Fourth Proportional to 881,907,751.80, 1,322,861,627.70 and 718,649,076.60

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Solution

The fourth proportional to 881,907,751.80, 1,322,861,627.70 and 718,649,076.60 is: 1,077,973,614.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,907,751.80 : 1,322,861,627.70 = 718,649,076.60 : x
  2. Step 2: Convert to fraction form
    881,907,751.80/1,322,861,627.70 = 718,649,076.60/x
  3. Step 3: Cross multiply
    881,907,751.80x = 1,322,861,627.70 × 718,649,076.60
  4. Step 4: Simplify right side
    881,907,751.80x = 950,673,287,216,178,048
  5. Step 5: Solve for x
    x = 950,673,287,216,178,048/881,907,751.80
  6. Step 6: Final answer
    x = 1,077,973,614.90

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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.