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Finding the Fourth Proportional to 388,160.67, 582,207.54 and 236,318.43

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Solution

The fourth proportional to 388,160.67, 582,207.54 and 236,318.43 is: 354,457.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,160.67 : 582,207.54 = 236,318.43 : x
  2. Step 2: Convert to fraction form
    388,160.67/582,207.54 = 236,318.43/x
  3. Step 3: Cross multiply
    388,160.67x = 582,207.54 × 236,318.43
  4. Step 4: Simplify right side
    388,160.67x = 137,586,371,786.96
  5. Step 5: Solve for x
    x = 137,586,371,786.96/388,160.67
  6. Step 6: Final answer
    x = 354,457.27

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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.