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Finding the Fourth Proportional to 351,813.32, 485,500.46 and 190,666.65

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Solution

The fourth proportional to 351,813.32, 485,500.46 and 190,666.65 is: 263,118.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,813.32 : 485,500.46 = 190,666.65 : x
  2. Step 2: Convert to fraction form
    351,813.32/485,500.46 = 190,666.65/x
  3. Step 3: Cross multiply
    351,813.32x = 485,500.46 × 190,666.65
  4. Step 4: Simplify right side
    351,813.32x = 92,568,745,328.33
  5. Step 5: Solve for x
    x = 92,568,745,328.33/351,813.32
  6. Step 6: Final answer
    x = 263,118.94

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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.