Home / 1,353,083.88-1,866,410.82-870,278.76

Finding the Fourth Proportional to 1,353,083.88, 1,866,410.82 and 870,278.76

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Solution

The fourth proportional to 1,353,083.88, 1,866,410.82 and 870,278.76 is: 1,200,441.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,083.88 : 1,866,410.82 = 870,278.76 : x
  2. Step 2: Convert to fraction form
    1,353,083.88/1,866,410.82 = 870,278.76/x
  3. Step 3: Cross multiply
    1,353,083.88x = 1,866,410.82 × 870,278.76
  4. Step 4: Simplify right side
    1,353,083.88x = 1,624,297,694,080.18
  5. Step 5: Solve for x
    x = 1,624,297,694,080.18/1,353,083.88
  6. Step 6: Final answer
    x = 1,200,441.24

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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.