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Finding the Fourth Proportional to 548,556.12, 822,871.08 and 211,599.56

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Solution

The fourth proportional to 548,556.12, 822,871.08 and 211,599.56 is: 317,413.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,556.12 : 822,871.08 = 211,599.56 : x
  2. Step 2: Convert to fraction form
    548,556.12/822,871.08 = 211,599.56/x
  3. Step 3: Cross multiply
    548,556.12x = 822,871.08 × 211,599.56
  4. Step 4: Simplify right side
    548,556.12x = 174,119,160,521.90
  5. Step 5: Solve for x
    x = 174,119,160,521.90/548,556.12
  6. Step 6: Final answer
    x = 317,413.58

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1.5x scale

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.