Home / 1,320,138-1,821,792.06-716,526

Finding the Fourth Proportional to 1,320,138, 1,821,792.06 and 716,526

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Solution

The fourth proportional to 1,320,138, 1,821,792.06 and 716,526 is: 988,806.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,138 : 1,821,792.06 = 716,526 : x
  2. Step 2: Convert to fraction form
    1,320,138/1,821,792.06 = 716,526/x
  3. Step 3: Cross multiply
    1,320,138x = 1,821,792.06 × 716,526
  4. Step 4: Simplify right side
    1,320,138x = 1,305,361,377,583.56
  5. Step 5: Solve for x
    x = 1,305,361,377,583.56/1,320,138
  6. Step 6: Final answer
    x = 988,806.76

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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.