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Finding the Fourth Proportional to 824,676.76, 1,137,379.15 and 580,469.93

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Solution

The fourth proportional to 824,676.76, 1,137,379.15 and 580,469.93 is: 800,573.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,676.76 : 1,137,379.15 = 580,469.93 : x
  2. Step 2: Convert to fraction form
    824,676.76/1,137,379.15 = 580,469.93/x
  3. Step 3: Cross multiply
    824,676.76x = 1,137,379.15 × 580,469.93
  4. Step 4: Simplify right side
    824,676.76x = 660,214,394,887.82
  5. Step 5: Solve for x
    x = 660,214,394,887.82/824,676.76
  6. Step 6: Final answer
    x = 800,573.54

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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.