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Finding the Fourth Proportional to 519,819.88, 779,729.28 and 195,668.51

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Solution

The fourth proportional to 519,819.88, 779,729.28 and 195,668.51 is: 293,502.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,819.88 : 779,729.28 = 195,668.51 : x
  2. Step 2: Convert to fraction form
    519,819.88/779,729.28 = 195,668.51/x
  3. Step 3: Cross multiply
    519,819.88x = 779,729.28 × 195,668.51
  4. Step 4: Simplify right side
    519,819.88x = 152,568,462,522.33
  5. Step 5: Solve for x
    x = 152,568,462,522.33/519,819.88
  6. Step 6: Final answer
    x = 293,502.56

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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.