Home / 1,189,138.16-1,640,324.40-758,933.44

Finding the Fourth Proportional to 1,189,138.16, 1,640,324.40 and 758,933.44

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Solution

The fourth proportional to 1,189,138.16, 1,640,324.40 and 758,933.44 is: 1,046,890.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,138.16 : 1,640,324.40 = 758,933.44 : x
  2. Step 2: Convert to fraction form
    1,189,138.16/1,640,324.40 = 758,933.44/x
  3. Step 3: Cross multiply
    1,189,138.16x = 1,640,324.40 × 758,933.44
  4. Step 4: Simplify right side
    1,189,138.16x = 1,244,897,039,607.94
  5. Step 5: Solve for x
    x = 1,244,897,039,607.94/1,189,138.16
  6. Step 6: Final answer
    x = 1,046,890.16

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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.