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Finding the Fourth Proportional to 562,930.80, 843,218.60 and 263,666.80

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Solution

The fourth proportional to 562,930.80, 843,218.60 and 263,666.80 is: 394,948.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,930.80 : 843,218.60 = 263,666.80 : x
  2. Step 2: Convert to fraction form
    562,930.80/843,218.60 = 263,666.80/x
  3. Step 3: Cross multiply
    562,930.80x = 843,218.60 × 263,666.80
  4. Step 4: Simplify right side
    562,930.80x = 222,328,749,962.48
  5. Step 5: Solve for x
    x = 222,328,749,962.48/562,930.80
  6. Step 6: Final answer
    x = 394,948.63

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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.