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Finding the Fourth Proportional to 496,872.04, 685,683.54 and 279,081.04

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Solution

The fourth proportional to 496,872.04, 685,683.54 and 279,081.04 is: 385,131.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,872.04 : 685,683.54 = 279,081.04 : x
  2. Step 2: Convert to fraction form
    496,872.04/685,683.54 = 279,081.04/x
  3. Step 3: Cross multiply
    496,872.04x = 685,683.54 × 279,081.04
  4. Step 4: Simplify right side
    496,872.04x = 191,361,275,454.08
  5. Step 5: Solve for x
    x = 191,361,275,454.08/496,872.04
  6. Step 6: Final answer
    x = 385,131.91

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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.