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Finding the Fourth Proportional to 262,149.80, 393,224.70 and 222,783.80

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Solution

The fourth proportional to 262,149.80, 393,224.70 and 222,783.80 is: 334,175.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,149.80 : 393,224.70 = 222,783.80 : x
  2. Step 2: Convert to fraction form
    262,149.80/393,224.70 = 222,783.80/x
  3. Step 3: Cross multiply
    262,149.80x = 393,224.70 × 222,783.80
  4. Step 4: Simplify right side
    262,149.80x = 87,604,092,919.86
  5. Step 5: Solve for x
    x = 87,604,092,919.86/262,149.80
  6. Step 6: Final answer
    x = 334,175.70

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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.