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Finding the Fourth Proportional to 579,204.90, 868,923.09 and 200,139.30

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Solution

The fourth proportional to 579,204.90, 868,923.09 and 200,139.30 is: 300,248.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,204.90 : 868,923.09 = 200,139.30 : x
  2. Step 2: Convert to fraction form
    579,204.90/868,923.09 = 200,139.30/x
  3. Step 3: Cross multiply
    579,204.90x = 868,923.09 × 200,139.30
  4. Step 4: Simplify right side
    579,204.90x = 173,905,658,986.44
  5. Step 5: Solve for x
    x = 173,905,658,986.44/579,204.90
  6. Step 6: Final answer
    x = 300,248.94

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Double scale
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Similar ratio
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1.5x scale

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.