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Finding the Fourth Proportional to 496,212.06, 684,928.59 and 281,494.86

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Solution

The fourth proportional to 496,212.06, 684,928.59 and 281,494.86 is: 388,551.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,212.06 : 684,928.59 = 281,494.86 : x
  2. Step 2: Convert to fraction form
    496,212.06/684,928.59 = 281,494.86/x
  3. Step 3: Cross multiply
    496,212.06x = 684,928.59 × 281,494.86
  4. Step 4: Simplify right side
    496,212.06x = 192,803,877,552.05
  5. Step 5: Solve for x
    x = 192,803,877,552.05/496,212.06
  6. Step 6: Final answer
    x = 388,551.37

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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.