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Finding the Fourth Proportional to 369,833.53, 554,287.20 and 198,634.54

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Solution

The fourth proportional to 369,833.53, 554,287.20 and 198,634.54 is: 297,703.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,833.53 : 554,287.20 = 198,634.54 : x
  2. Step 2: Convert to fraction form
    369,833.53/554,287.20 = 198,634.54/x
  3. Step 3: Cross multiply
    369,833.53x = 554,287.20 × 198,634.54
  4. Step 4: Simplify right side
    369,833.53x = 110,100,582,999.89
  5. Step 5: Solve for x
    x = 110,100,582,999.89/369,833.53
  6. Step 6: Final answer
    x = 297,703.09

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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.