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Finding the Fourth Proportional to 579,858.75, 800,555.00 and 379,004.67

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Solution

The fourth proportional to 579,858.75, 800,555.00 and 379,004.67 is: 523,255.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,858.75 : 800,555.00 = 379,004.67 : x
  2. Step 2: Convert to fraction form
    579,858.75/800,555.00 = 379,004.67/x
  3. Step 3: Cross multiply
    579,858.75x = 800,555.00 × 379,004.67
  4. Step 4: Simplify right side
    579,858.75x = 303,414,081,696.83
  5. Step 5: Solve for x
    x = 303,414,081,696.83/579,858.75
  6. Step 6: Final answer
    x = 523,255.16

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.