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Finding the Fourth Proportional to 393,951.40, 590,927.10 and 236,098.60

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Solution

The fourth proportional to 393,951.40, 590,927.10 and 236,098.60 is: 354,147.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,951.40 : 590,927.10 = 236,098.60 : x
  2. Step 2: Convert to fraction form
    393,951.40/590,927.10 = 236,098.60/x
  3. Step 3: Cross multiply
    393,951.40x = 590,927.10 × 236,098.60
  4. Step 4: Simplify right side
    393,951.40x = 139,517,061,012.06
  5. Step 5: Solve for x
    x = 139,517,061,012.06/393,951.40
  6. Step 6: Final answer
    x = 354,147.90

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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.