Home / 880,393.28-1,212,222.32-687,579.84

Finding the Fourth Proportional to 880,393.28, 1,212,222.32 and 687,579.84

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Solution

The fourth proportional to 880,393.28, 1,212,222.32 and 687,579.84 is: 946,735.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,393.28 : 1,212,222.32 = 687,579.84 : x
  2. Step 2: Convert to fraction form
    880,393.28/1,212,222.32 = 687,579.84/x
  3. Step 3: Cross multiply
    880,393.28x = 1,212,222.32 × 687,579.84
  4. Step 4: Simplify right side
    880,393.28x = 833,499,628,830.03
  5. Step 5: Solve for x
    x = 833,499,628,830.03/880,393.28
  6. Step 6: Final answer
    x = 946,735.56

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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.