Home / 1,993,806.40-2,990,709.60-983,412.40

Finding the Fourth Proportional to 1,993,806.40, 2,990,709.60 and 983,412.40

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Solution

The fourth proportional to 1,993,806.40, 2,990,709.60 and 983,412.40 is: 1,475,118.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,806.40 : 2,990,709.60 = 983,412.40 : x
  2. Step 2: Convert to fraction form
    1,993,806.40/2,990,709.60 = 983,412.40/x
  3. Step 3: Cross multiply
    1,993,806.40x = 2,990,709.60 × 983,412.40
  4. Step 4: Simplify right side
    1,993,806.40x = 2,941,100,905,439.04
  5. Step 5: Solve for x
    x = 2,941,100,905,439.04/1,993,806.40
  6. Step 6: Final answer
    x = 1,475,118.60

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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.