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Finding the Fourth Proportional to 994,858.92, 1,372,961.40 and 752,721.10

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Solution

The fourth proportional to 994,858.92, 1,372,961.40 and 752,721.10 is: 1,038,797.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,858.92 : 1,372,961.40 = 752,721.10 : x
  2. Step 2: Convert to fraction form
    994,858.92/1,372,961.40 = 752,721.10/x
  3. Step 3: Cross multiply
    994,858.92x = 1,372,961.40 × 752,721.10
  4. Step 4: Simplify right side
    994,858.92x = 1,033,457,015,265.54
  5. Step 5: Solve for x
    x = 1,033,457,015,265.54/994,858.92
  6. Step 6: Final answer
    x = 1,038,797.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.