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Finding the Fourth Proportional to 519,649.92, 779,337.18 and 204,109.56

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Solution

The fourth proportional to 519,649.92, 779,337.18 and 204,109.56 is: 306,110.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,649.92 : 779,337.18 = 204,109.56 : x
  2. Step 2: Convert to fraction form
    519,649.92/779,337.18 = 204,109.56/x
  3. Step 3: Cross multiply
    519,649.92x = 779,337.18 × 204,109.56
  4. Step 4: Simplify right side
    519,649.92x = 159,070,168,901.44
  5. Step 5: Solve for x
    x = 159,070,168,901.44/519,649.92
  6. Step 6: Final answer
    x = 306,110.25

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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.