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Finding the Fourth Proportional to 285,029.66, 393,169.57 and 188,234.41

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Solution

The fourth proportional to 285,029.66, 393,169.57 and 188,234.41 is: 259,650.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,029.66 : 393,169.57 = 188,234.41 : x
  2. Step 2: Convert to fraction form
    285,029.66/393,169.57 = 188,234.41/x
  3. Step 3: Cross multiply
    285,029.66x = 393,169.57 × 188,234.41
  4. Step 4: Simplify right side
    285,029.66x = 74,008,042,038.90
  5. Step 5: Solve for x
    x = 74,008,042,038.90/285,029.66
  6. Step 6: Final answer
    x = 259,650.32

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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.