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Finding the Fourth Proportional to 936,512.80, 1,401,658.80 and 656,576.80

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Solution

The fourth proportional to 936,512.80, 1,401,658.80 and 656,576.80 is: 982,684.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,512.80 : 1,401,658.80 = 656,576.80 : x
  2. Step 2: Convert to fraction form
    936,512.80/1,401,658.80 = 656,576.80/x
  3. Step 3: Cross multiply
    936,512.80x = 1,401,658.80 × 656,576.80
  4. Step 4: Simplify right side
    936,512.80x = 920,296,649,595.84
  5. Step 5: Solve for x
    x = 920,296,649,595.84/936,512.80
  6. Step 6: Final answer
    x = 982,684.54

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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.