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Finding the Fourth Proportional to 328,165.74, 452,968.84 and 190,379.48

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Solution

The fourth proportional to 328,165.74, 452,968.84 and 190,379.48 is: 262,781.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,165.74 : 452,968.84 = 190,379.48 : x
  2. Step 2: Convert to fraction form
    328,165.74/452,968.84 = 190,379.48/x
  3. Step 3: Cross multiply
    328,165.74x = 452,968.84 × 190,379.48
  4. Step 4: Simplify right side
    328,165.74x = 86,235,970,188.53
  5. Step 5: Solve for x
    x = 86,235,970,188.53/328,165.74
  6. Step 6: Final answer
    x = 262,781.76

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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.