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Finding the Fourth Proportional to 451,532.64, 623,143.12 and 250,328.64

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Solution

The fourth proportional to 451,532.64, 623,143.12 and 250,328.64 is: 345,469.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,532.64 : 623,143.12 = 250,328.64 : x
  2. Step 2: Convert to fraction form
    451,532.64/623,143.12 = 250,328.64/x
  3. Step 3: Cross multiply
    451,532.64x = 623,143.12 × 250,328.64
  4. Step 4: Simplify right side
    451,532.64x = 155,990,569,754.96
  5. Step 5: Solve for x
    x = 155,990,569,754.96/451,532.64
  6. Step 6: Final answer
    x = 345,469.09

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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.