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Finding the Fourth Proportional to 313,891.78, 433,175.37 and 170,651.50

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Solution

The fourth proportional to 313,891.78, 433,175.37 and 170,651.50 is: 235,501.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,891.78 : 433,175.37 = 170,651.50 : x
  2. Step 2: Convert to fraction form
    313,891.78/433,175.37 = 170,651.50/x
  3. Step 3: Cross multiply
    313,891.78x = 433,175.37 × 170,651.50
  4. Step 4: Simplify right side
    313,891.78x = 73,922,026,653.56
  5. Step 5: Solve for x
    x = 73,922,026,653.56/313,891.78
  6. Step 6: Final answer
    x = 235,501.63

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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.