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Finding the Fourth Proportional to 455,287.88, 682,867.14 and 250,186.16

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Solution

The fourth proportional to 455,287.88, 682,867.14 and 250,186.16 is: 375,243.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,287.88 : 682,867.14 = 250,186.16 : x
  2. Step 2: Convert to fraction form
    455,287.88/682,867.14 = 250,186.16/x
  3. Step 3: Cross multiply
    455,287.88x = 682,867.14 × 250,186.16
  4. Step 4: Simplify right side
    455,287.88x = 170,843,907,546.78
  5. Step 5: Solve for x
    x = 170,843,907,546.78/455,287.88
  6. Step 6: Final answer
    x = 375,243.70

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1.5x scale

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.