Home / 1,433,183.09-1,977,566.78-821,218.17

Finding the Fourth Proportional to 1,433,183.09, 1,977,566.78 and 821,218.17

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Solution

The fourth proportional to 1,433,183.09, 1,977,566.78 and 821,218.17 is: 1,133,151.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,183.09 : 1,977,566.78 = 821,218.17 : x
  2. Step 2: Convert to fraction form
    1,433,183.09/1,977,566.78 = 821,218.17/x
  3. Step 3: Cross multiply
    1,433,183.09x = 1,977,566.78 × 821,218.17
  4. Step 4: Simplify right side
    1,433,183.09x = 1,624,013,774,177.44
  5. Step 5: Solve for x
    x = 1,624,013,774,177.44/1,433,183.09
  6. Step 6: Final answer
    x = 1,133,151.64

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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.