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Finding the Fourth Proportional to 460,993.10, 636,212.46 and 279,751.15

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Solution

The fourth proportional to 460,993.10, 636,212.46 and 279,751.15 is: 386,082.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,993.10 : 636,212.46 = 279,751.15 : x
  2. Step 2: Convert to fraction form
    460,993.10/636,212.46 = 279,751.15/x
  3. Step 3: Cross multiply
    460,993.10x = 636,212.46 × 279,751.15
  4. Step 4: Simplify right side
    460,993.10x = 177,981,167,329.33
  5. Step 5: Solve for x
    x = 177,981,167,329.33/460,993.10
  6. Step 6: Final answer
    x = 386,082.06

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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.