Home / 1,189,115.64-1,640,512.44-679,544.64

Finding the Fourth Proportional to 1,189,115.64, 1,640,512.44 and 679,544.64

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Solution

The fourth proportional to 1,189,115.64, 1,640,512.44 and 679,544.64 is: 937,504.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,115.64 : 1,640,512.44 = 679,544.64 : x
  2. Step 2: Convert to fraction form
    1,189,115.64/1,640,512.44 = 679,544.64/x
  3. Step 3: Cross multiply
    1,189,115.64x = 1,640,512.44 × 679,544.64
  4. Step 4: Simplify right side
    1,189,115.64x = 1,114,801,435,455.32
  5. Step 5: Solve for x
    x = 1,114,801,435,455.32/1,189,115.64
  6. Step 6: Final answer
    x = 937,504.64

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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.