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Finding the Fourth Proportional to 638,170.98, 957,295.41 and 205,932.30

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Solution

The fourth proportional to 638,170.98, 957,295.41 and 205,932.30 is: 308,911.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,170.98 : 957,295.41 = 205,932.30 : x
  2. Step 2: Convert to fraction form
    638,170.98/957,295.41 = 205,932.30/x
  3. Step 3: Cross multiply
    638,170.98x = 957,295.41 × 205,932.30
  4. Step 4: Simplify right side
    638,170.98x = 197,138,045,560.74
  5. Step 5: Solve for x
    x = 197,138,045,560.74/638,170.98
  6. Step 6: Final answer
    x = 308,911.02

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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.