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Finding the Fourth Proportional to 519,640.01, 778,832.17 and 253,000.97

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Solution

The fourth proportional to 519,640.01, 778,832.17 and 253,000.97 is: 379,195.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,640.01 : 778,832.17 = 253,000.97 : x
  2. Step 2: Convert to fraction form
    519,640.01/778,832.17 = 253,000.97/x
  3. Step 3: Cross multiply
    519,640.01x = 778,832.17 × 253,000.97
  4. Step 4: Simplify right side
    519,640.01x = 197,045,289,950.54
  5. Step 5: Solve for x
    x = 197,045,289,950.54/519,640.01
  6. Step 6: Final answer
    x = 379,195.77

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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.