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Finding the Fourth Proportional to 394,288.91, 591,490.45 and 124,325.41

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Solution

The fourth proportional to 394,288.91, 591,490.45 and 124,325.41 is: 186,506.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,288.91 : 591,490.45 = 124,325.41 : x
  2. Step 2: Convert to fraction form
    394,288.91/591,490.45 = 124,325.41/x
  3. Step 3: Cross multiply
    394,288.91x = 591,490.45 × 124,325.41
  4. Step 4: Simplify right side
    394,288.91x = 73,537,292,707.33
  5. Step 5: Solve for x
    x = 73,537,292,707.33/394,288.91
  6. Step 6: Final answer
    x = 186,506.11

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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.