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Finding the Fourth Proportional to 394,447.55, 590,990.93 and 183,653.15

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Solution

The fourth proportional to 394,447.55, 590,990.93 and 183,653.15 is: 275,162.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,447.55 : 590,990.93 = 183,653.15 : x
  2. Step 2: Convert to fraction form
    394,447.55/590,990.93 = 183,653.15/x
  3. Step 3: Cross multiply
    394,447.55x = 590,990.93 × 183,653.15
  4. Step 4: Simplify right side
    394,447.55x = 108,537,344,997.66
  5. Step 5: Solve for x
    x = 108,537,344,997.66/394,447.55
  6. Step 6: Final answer
    x = 275,162.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.