Home / 1,065,954.18-1,471,166.82-678,645.90

Finding the Fourth Proportional to 1,065,954.18, 1,471,166.82 and 678,645.90

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Solution

The fourth proportional to 1,065,954.18, 1,471,166.82 and 678,645.90 is: 936,626.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065,954.18 : 1,471,166.82 = 678,645.90 : x
  2. Step 2: Convert to fraction form
    1,065,954.18/1,471,166.82 = 678,645.90/x
  3. Step 3: Cross multiply
    1,065,954.18x = 1,471,166.82 × 678,645.90
  4. Step 4: Simplify right side
    1,065,954.18x = 998,401,330,609.04
  5. Step 5: Solve for x
    x = 998,401,330,609.04/1,065,954.18
  6. Step 6: Final answer
    x = 936,626.87

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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.