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Finding the Fourth Proportional to 548,570.25, 822,892.34 and 211,613.71

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Solution

The fourth proportional to 548,570.25, 822,892.34 and 211,613.71 is: 317,434.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,570.25 : 822,892.34 = 211,613.71 : x
  2. Step 2: Convert to fraction form
    548,570.25/822,892.34 = 211,613.71/x
  3. Step 3: Cross multiply
    548,570.25x = 822,892.34 × 211,613.71
  4. Step 4: Simplify right side
    548,570.25x = 174,135,300,997.98
  5. Step 5: Solve for x
    x = 174,135,300,997.98/548,570.25
  6. Step 6: Final answer
    x = 317,434.82

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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.