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Finding the Fourth Proportional to 1,178,283.47, 1,764,972.98 and 749,696.27

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Solution

The fourth proportional to 1,178,283.47, 1,764,972.98 and 749,696.27 is: 1,122,984.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,283.47 : 1,764,972.98 = 749,696.27 : x
  2. Step 2: Convert to fraction form
    1,178,283.47/1,764,972.98 = 749,696.27/x
  3. Step 3: Cross multiply
    1,178,283.47x = 1,764,972.98 × 749,696.27
  4. Step 4: Simplify right side
    1,178,283.47x = 1,323,193,647,183.44
  5. Step 5: Solve for x
    x = 1,323,193,647,183.44/1,178,283.47
  6. Step 6: Final answer
    x = 1,122,984.14

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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.