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Finding the Fourth Proportional to 519,820.28, 779,729.84 and 195,668.92

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Solution

The fourth proportional to 519,820.28, 779,729.84 and 195,668.92 is: 293,503.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,820.28 : 779,729.84 = 195,668.92 : x
  2. Step 2: Convert to fraction form
    519,820.28/779,729.84 = 195,668.92/x
  3. Step 3: Cross multiply
    519,820.28x = 779,729.84 × 195,668.92
  4. Step 4: Simplify right side
    519,820.28x = 152,568,895,684.57
  5. Step 5: Solve for x
    x = 152,568,895,684.57/519,820.28
  6. Step 6: Final answer
    x = 293,503.16

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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.