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Finding the Fourth Proportional to 496,994.67, 685,834.63 and 303,725.72

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Solution

The fourth proportional to 496,994.67, 685,834.63 and 303,725.72 is: 419,130.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,994.67 : 685,834.63 = 303,725.72 : x
  2. Step 2: Convert to fraction form
    496,994.67/685,834.63 = 303,725.72/x
  3. Step 3: Cross multiply
    496,994.67x = 685,834.63 × 303,725.72
  4. Step 4: Simplify right side
    496,994.67x = 208,305,617,752.96
  5. Step 5: Solve for x
    x = 208,305,617,752.96/496,994.67
  6. Step 6: Final answer
    x = 419,130.49

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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.