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Finding the Fourth Proportional to 262,148.80, 393,223.20 and 222,782.80

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Solution

The fourth proportional to 262,148.80, 393,223.20 and 222,782.80 is: 334,174.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,148.80 : 393,223.20 = 222,782.80 : x
  2. Step 2: Convert to fraction form
    262,148.80/393,223.20 = 222,782.80/x
  3. Step 3: Cross multiply
    262,148.80x = 393,223.20 × 222,782.80
  4. Step 4: Simplify right side
    262,148.80x = 87,603,365,520.96
  5. Step 5: Solve for x
    x = 87,603,365,520.96/262,148.80
  6. Step 6: Final answer
    x = 334,174.20

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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.