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Finding the Fourth Proportional to 285,033.83, 393,175.31 and 188,238.57

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Solution

The fourth proportional to 285,033.83, 393,175.31 and 188,238.57 is: 259,656.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,033.83 : 393,175.31 = 188,238.57 : x
  2. Step 2: Convert to fraction form
    285,033.83/393,175.31 = 188,238.57/x
  3. Step 3: Cross multiply
    285,033.83x = 393,175.31 × 188,238.57
  4. Step 4: Simplify right side
    285,033.83x = 74,010,757,172.51
  5. Step 5: Solve for x
    x = 74,010,757,172.51/285,033.83
  6. Step 6: Final answer
    x = 259,656.05

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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.