Home / 862,668.58-1,190,571.22-518,615.88

Finding the Fourth Proportional to 862,668.58, 1,190,571.22 and 518,615.88

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Solution

The fourth proportional to 862,668.58, 1,190,571.22 and 518,615.88 is: 715,743.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,668.58 : 1,190,571.22 = 518,615.88 : x
  2. Step 2: Convert to fraction form
    862,668.58/1,190,571.22 = 518,615.88/x
  3. Step 3: Cross multiply
    862,668.58x = 1,190,571.22 × 518,615.88
  4. Step 4: Simplify right side
    862,668.58x = 617,449,140,962.97
  5. Step 5: Solve for x
    x = 617,449,140,962.97/862,668.58
  6. Step 6: Final answer
    x = 715,743.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.