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Finding the Fourth Proportional to 451,771.32, 623,457.90 and 250,563

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Solution

The fourth proportional to 451,771.32, 623,457.90 and 250,563 is: 345,784.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,771.32 : 623,457.90 = 250,563 : x
  2. Step 2: Convert to fraction form
    451,771.32/623,457.90 = 250,563/x
  3. Step 3: Cross multiply
    451,771.32x = 623,457.90 × 250,563
  4. Step 4: Simplify right side
    451,771.32x = 156,215,481,797.70
  5. Step 5: Solve for x
    x = 156,215,481,797.70/451,771.32
  6. Step 6: Final answer
    x = 345,784.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.