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Finding the Fourth Proportional to 295,474.80, 443,212.20 and 262,815.60

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Solution

The fourth proportional to 295,474.80, 443,212.20 and 262,815.60 is: 394,223.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,474.80 : 443,212.20 = 262,815.60 : x
  2. Step 2: Convert to fraction form
    295,474.80/443,212.20 = 262,815.60/x
  3. Step 3: Cross multiply
    295,474.80x = 443,212.20 × 262,815.60
  4. Step 4: Simplify right side
    295,474.80x = 116,483,080,270.32
  5. Step 5: Solve for x
    x = 116,483,080,270.32/295,474.80
  6. Step 6: Final answer
    x = 394,223.40

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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.