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Finding the Fourth Proportional to 881,963,865.87, 1,322,945,798.31 and 329,309,453.67

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Solution

The fourth proportional to 881,963,865.87, 1,322,945,798.31 and 329,309,453.67 is: 493,964,180.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,963,865.87 : 1,322,945,798.31 = 329,309,453.67 : x
  2. Step 2: Convert to fraction form
    881,963,865.87/1,322,945,798.31 = 329,309,453.67/x
  3. Step 3: Cross multiply
    881,963,865.87x = 1,322,945,798.31 × 329,309,453.67
  4. Step 4: Simplify right side
    881,963,865.87x = 435,658,558,076,488,128
  5. Step 5: Solve for x
    x = 435,658,558,076,488,128/881,963,865.87
  6. Step 6: Final answer
    x = 493,964,180.32

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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.