Home / 1,297,533.77-1,790,647.26-716,786.85

Finding the Fourth Proportional to 1,297,533.77, 1,790,647.26 and 716,786.85

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Solution

The fourth proportional to 1,297,533.77, 1,790,647.26 and 716,786.85 is: 989,193.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,533.77 : 1,790,647.26 = 716,786.85 : x
  2. Step 2: Convert to fraction form
    1,297,533.77/1,790,647.26 = 716,786.85/x
  3. Step 3: Cross multiply
    1,297,533.77x = 1,790,647.26 × 716,786.85
  4. Step 4: Simplify right side
    1,297,533.77x = 1,283,512,412,983.51
  5. Step 5: Solve for x
    x = 1,283,512,412,983.51/1,297,533.77
  6. Step 6: Final answer
    x = 989,193.84

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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.