Home / 1,035,578.32-1,428,361.94-691,240.64

Finding the Fourth Proportional to 1,035,578.32, 1,428,361.94 and 691,240.64

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Solution

The fourth proportional to 1,035,578.32, 1,428,361.94 and 691,240.64 is: 953,420.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,035,578.32 : 1,428,361.94 = 691,240.64 : x
  2. Step 2: Convert to fraction form
    1,035,578.32/1,428,361.94 = 691,240.64/x
  3. Step 3: Cross multiply
    1,035,578.32x = 1,428,361.94 × 691,240.64
  4. Step 4: Simplify right side
    1,035,578.32x = 987,341,821,557.24
  5. Step 5: Solve for x
    x = 987,341,821,557.24/1,035,578.32
  6. Step 6: Final answer
    x = 953,420.71

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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.