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Finding the Fourth Proportional to 873,963,901.20, 1,311,449,736.60 and 329,096,470.80

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Solution

The fourth proportional to 873,963,901.20, 1,311,449,736.60 and 329,096,470.80 is: 493,834,447.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,963,901.20 : 1,311,449,736.60 = 329,096,470.80 : x
  2. Step 2: Convert to fraction form
    873,963,901.20/1,311,449,736.60 = 329,096,470.80/x
  3. Step 3: Cross multiply
    873,963,901.20x = 1,311,449,736.60 × 329,096,470.80
  4. Step 4: Simplify right side
    873,963,901.20x = 431,593,479,946,649,600
  5. Step 5: Solve for x
    x = 431,593,479,946,649,600/873,963,901.20
  6. Step 6: Final answer
    x = 493,834,447.11

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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.