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Finding the Fourth Proportional to 375,040.69, 517,453.89 and 213,836.92

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Solution

The fourth proportional to 375,040.69, 517,453.89 and 213,836.92 is: 295,036.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,040.69 : 517,453.89 = 213,836.92 : x
  2. Step 2: Convert to fraction form
    375,040.69/517,453.89 = 213,836.92/x
  3. Step 3: Cross multiply
    375,040.69x = 517,453.89 × 213,836.92
  4. Step 4: Simplify right side
    375,040.69x = 110,650,743,984.10
  5. Step 5: Solve for x
    x = 110,650,743,984.10/375,040.69
  6. Step 6: Final answer
    x = 295,036.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.