Home / 1,065,912.96-1,471,109.91-678,604.66

Finding the Fourth Proportional to 1,065,912.96, 1,471,109.91 and 678,604.66

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Solution

The fourth proportional to 1,065,912.96, 1,471,109.91 and 678,604.66 is: 936,569.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065,912.96 : 1,471,109.91 = 678,604.66 : x
  2. Step 2: Convert to fraction form
    1,065,912.96/1,471,109.91 = 678,604.66/x
  3. Step 3: Cross multiply
    1,065,912.96x = 1,471,109.91 × 678,604.66
  4. Step 4: Simplify right side
    1,065,912.96x = 998,302,040,298.18
  5. Step 5: Solve for x
    x = 998,302,040,298.18/1,065,912.96
  6. Step 6: Final answer
    x = 936,569.94

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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.