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Finding the Fourth Proportional to 307,954.80, 461,932.20 and 265,964.40

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Solution

The fourth proportional to 307,954.80, 461,932.20 and 265,964.40 is: 398,946.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,954.80 : 461,932.20 = 265,964.40 : x
  2. Step 2: Convert to fraction form
    307,954.80/461,932.20 = 265,964.40/x
  3. Step 3: Cross multiply
    307,954.80x = 461,932.20 × 265,964.40
  4. Step 4: Simplify right side
    307,954.80x = 122,857,520,413.68
  5. Step 5: Solve for x
    x = 122,857,520,413.68/307,954.80
  6. Step 6: Final answer
    x = 398,946.60

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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.