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Finding the Fourth Proportional to 519,463.98, 779,218.20 and 203,989.14

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Solution

The fourth proportional to 519,463.98, 779,218.20 and 203,989.14 is: 305,992.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,463.98 : 779,218.20 = 203,989.14 : x
  2. Step 2: Convert to fraction form
    519,463.98/779,218.20 = 203,989.14/x
  3. Step 3: Cross multiply
    519,463.98x = 779,218.20 × 203,989.14
  4. Step 4: Simplify right side
    519,463.98x = 158,952,050,490.35
  5. Step 5: Solve for x
    x = 158,952,050,490.35/519,463.98
  6. Step 6: Final answer
    x = 305,992.44

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Double scale
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Similar ratio
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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.