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Finding the Fourth Proportional to 519,308.08, 779,203.23 and 199,353.49

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Solution

The fourth proportional to 519,308.08, 779,203.23 and 199,353.49 is: 299,122.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,308.08 : 779,203.23 = 199,353.49 : x
  2. Step 2: Convert to fraction form
    519,308.08/779,203.23 = 199,353.49/x
  3. Step 3: Cross multiply
    519,308.08x = 779,203.23 × 199,353.49
  4. Step 4: Simplify right side
    519,308.08x = 155,336,883,319.77
  5. Step 5: Solve for x
    x = 155,336,883,319.77/519,308.08
  6. Step 6: Final answer
    x = 299,122.79

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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.