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Finding the Fourth Proportional to 496,698.26, 685,458.28 and 351,763.34

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Solution

The fourth proportional to 496,698.26, 685,458.28 and 351,763.34 is: 485,443.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,698.26 : 685,458.28 = 351,763.34 : x
  2. Step 2: Convert to fraction form
    496,698.26/685,458.28 = 351,763.34/x
  3. Step 3: Cross multiply
    496,698.26x = 685,458.28 × 351,763.34
  4. Step 4: Simplify right side
    496,698.26x = 241,119,094,003.46
  5. Step 5: Solve for x
    x = 241,119,094,003.46/496,698.26
  6. Step 6: Final answer
    x = 485,443.81

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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.