Home / 1,993,140.11-2,990,183.21-645,302.81

Finding the Fourth Proportional to 1,993,140.11, 2,990,183.21 and 645,302.81

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Solution

The fourth proportional to 1,993,140.11, 2,990,183.21 and 645,302.81 is: 968,107.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,140.11 : 2,990,183.21 = 645,302.81 : x
  2. Step 2: Convert to fraction form
    1,993,140.11/2,990,183.21 = 645,302.81/x
  3. Step 3: Cross multiply
    1,993,140.11x = 2,990,183.21 × 645,302.81
  4. Step 4: Simplify right side
    1,993,140.11x = 1,929,573,627,827.82
  5. Step 5: Solve for x
    x = 1,929,573,627,827.82/1,993,140.11
  6. Step 6: Final answer
    x = 968,107.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.