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Finding the Fourth Proportional to 496,614.06, 685,342.95 and 281,763.18

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Solution

The fourth proportional to 496,614.06, 685,342.95 and 281,763.18 is: 388,842.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,614.06 : 685,342.95 = 281,763.18 : x
  2. Step 2: Convert to fraction form
    496,614.06/685,342.95 = 281,763.18/x
  3. Step 3: Cross multiply
    496,614.06x = 685,342.95 × 281,763.18
  4. Step 4: Simplify right side
    496,614.06x = 193,104,408,982.58
  5. Step 5: Solve for x
    x = 193,104,408,982.58/496,614.06
  6. Step 6: Final answer
    x = 388,842.01

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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.