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Finding the Fourth Proportional to 370,489.53, 554,846.25 and 190,100.22

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Solution

The fourth proportional to 370,489.53, 554,846.25 and 190,100.22 is: 284,694.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,489.53 : 554,846.25 = 190,100.22 : x
  2. Step 2: Convert to fraction form
    370,489.53/554,846.25 = 190,100.22/x
  3. Step 3: Cross multiply
    370,489.53x = 554,846.25 × 190,100.22
  4. Step 4: Simplify right side
    370,489.53x = 105,476,394,191.18
  5. Step 5: Solve for x
    x = 105,476,394,191.18/370,489.53
  6. Step 6: Final answer
    x = 284,694.67

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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.