Home / 1,286,799.96-1,930,496.46-445,351.71

Finding the Fourth Proportional to 1,286,799.96, 1,930,496.46 and 445,351.71

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Solution

The fourth proportional to 1,286,799.96, 1,930,496.46 and 445,351.71 is: 668,130.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,799.96 : 1,930,496.46 = 445,351.71 : x
  2. Step 2: Convert to fraction form
    1,286,799.96/1,930,496.46 = 445,351.71/x
  3. Step 3: Cross multiply
    1,286,799.96x = 1,930,496.46 × 445,351.71
  4. Step 4: Simplify right side
    1,286,799.96x = 859,749,899,609.95
  5. Step 5: Solve for x
    x = 859,749,899,609.95/1,286,799.96
  6. Step 6: Final answer
    x = 668,130.19

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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.