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Finding the Fourth Proportional to 886,798.74, 1,223,879.85 and 504,763.86

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Solution

The fourth proportional to 886,798.74, 1,223,879.85 and 504,763.86 is: 696,629.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,798.74 : 1,223,879.85 = 504,763.86 : x
  2. Step 2: Convert to fraction form
    886,798.74/1,223,879.85 = 504,763.86/x
  3. Step 3: Cross multiply
    886,798.74x = 1,223,879.85 × 504,763.86
  4. Step 4: Simplify right side
    886,798.74x = 617,770,317,262.22
  5. Step 5: Solve for x
    x = 617,770,317,262.22/886,798.74
  6. Step 6: Final answer
    x = 696,629.67

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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.