Home / 1,286,882.67-1,930,275.47-388,300.44

Finding the Fourth Proportional to 1,286,882.67, 1,930,275.47 and 388,300.44

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Solution

The fourth proportional to 1,286,882.67, 1,930,275.47 and 388,300.44 is: 582,436.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,882.67 : 1,930,275.47 = 388,300.44 : x
  2. Step 2: Convert to fraction form
    1,286,882.67/1,930,275.47 = 388,300.44/x
  3. Step 3: Cross multiply
    1,286,882.67x = 1,930,275.47 × 388,300.44
  4. Step 4: Simplify right side
    1,286,882.67x = 749,526,812,380.71
  5. Step 5: Solve for x
    x = 749,526,812,380.71/1,286,882.67
  6. Step 6: Final answer
    x = 582,436.01

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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.