Home / 1,396,856.40-2,093,902.20-686,302.80

Finding the Fourth Proportional to 1,396,856.40, 2,093,902.20 and 686,302.80

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Solution

The fourth proportional to 1,396,856.40, 2,093,902.20 and 686,302.80 is: 1,028,775.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,856.40 : 2,093,902.20 = 686,302.80 : x
  2. Step 2: Convert to fraction form
    1,396,856.40/2,093,902.20 = 686,302.80/x
  3. Step 3: Cross multiply
    1,396,856.40x = 2,093,902.20 × 686,302.80
  4. Step 4: Simplify right side
    1,396,856.40x = 1,437,050,942,786.16
  5. Step 5: Solve for x
    x = 1,437,050,942,786.16/1,396,856.40
  6. Step 6: Final answer
    x = 1,028,775.00

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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.