Home / 1,286,727.80-1,930,559.70-445,364.60

Finding the Fourth Proportional to 1,286,727.80, 1,930,559.70 and 445,364.60

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Solution

The fourth proportional to 1,286,727.80, 1,930,559.70 and 445,364.60 is: 668,208.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,727.80 : 1,930,559.70 = 445,364.60 : x
  2. Step 2: Convert to fraction form
    1,286,727.80/1,930,559.70 = 445,364.60/x
  3. Step 3: Cross multiply
    1,286,727.80x = 1,930,559.70 × 445,364.60
  4. Step 4: Simplify right side
    1,286,727.80x = 859,802,948,566.62
  5. Step 5: Solve for x
    x = 859,802,948,566.62/1,286,727.80
  6. Step 6: Final answer
    x = 668,208.89

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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.