Home / 1,278,768.11-1,764,574.27-705,771.34

Finding the Fourth Proportional to 1,278,768.11, 1,764,574.27 and 705,771.34

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Solution

The fourth proportional to 1,278,768.11, 1,764,574.27 and 705,771.34 is: 973,895.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,768.11 : 1,764,574.27 = 705,771.34 : x
  2. Step 2: Convert to fraction form
    1,278,768.11/1,764,574.27 = 705,771.34/x
  3. Step 3: Cross multiply
    1,278,768.11x = 1,764,574.27 × 705,771.34
  4. Step 4: Simplify right side
    1,278,768.11x = 1,245,385,940,891.56
  5. Step 5: Solve for x
    x = 1,245,385,940,891.56/1,278,768.11
  6. Step 6: Final answer
    x = 973,895.06

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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.