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Finding the Fourth Proportional to 994,491.70, 1,491,737.55 and 716,629.30

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Solution

The fourth proportional to 994,491.70, 1,491,737.55 and 716,629.30 is: 1,074,943.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,491.70 : 1,491,737.55 = 716,629.30 : x
  2. Step 2: Convert to fraction form
    994,491.70/1,491,737.55 = 716,629.30/x
  3. Step 3: Cross multiply
    994,491.70x = 1,491,737.55 × 716,629.30
  4. Step 4: Simplify right side
    994,491.70x = 1,069,022,836,240.22
  5. Step 5: Solve for x
    x = 1,069,022,836,240.22/994,491.70
  6. Step 6: Final answer
    x = 1,074,943.95

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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.