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Finding the Fourth Proportional to 352,491.07, 528,936.59 and 190,383.12

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Solution

The fourth proportional to 352,491.07, 528,936.59 and 190,383.12 is: 285,682.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,491.07 : 528,936.59 = 190,383.12 : x
  2. Step 2: Convert to fraction form
    352,491.07/528,936.59 = 190,383.12/x
  3. Step 3: Cross multiply
    352,491.07x = 528,936.59 × 190,383.12
  4. Step 4: Simplify right side
    352,491.07x = 100,700,598,286.36
  5. Step 5: Solve for x
    x = 100,700,598,286.36/352,491.07
  6. Step 6: Final answer
    x = 285,682.69

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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.