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Finding the Fourth Proportional to 352,074.84, 485,860.62 and 190,930.20

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Solution

The fourth proportional to 352,074.84, 485,860.62 and 190,930.20 is: 263,482.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,074.84 : 485,860.62 = 190,930.20 : x
  2. Step 2: Convert to fraction form
    352,074.84/485,860.62 = 190,930.20/x
  3. Step 3: Cross multiply
    352,074.84x = 485,860.62 × 190,930.20
  4. Step 4: Simplify right side
    352,074.84x = 92,765,465,348.72
  5. Step 5: Solve for x
    x = 92,765,465,348.72/352,074.84
  6. Step 6: Final answer
    x = 263,482.23

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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.