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Finding the Fourth Proportional to 451,346.88, 622,859.20 and 250,143.04

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Solution

The fourth proportional to 451,346.88, 622,859.20 and 250,143.04 is: 345,197.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,346.88 : 622,859.20 = 250,143.04 : x
  2. Step 2: Convert to fraction form
    451,346.88/622,859.20 = 250,143.04/x
  3. Step 3: Cross multiply
    451,346.88x = 622,859.20 × 250,143.04
  4. Step 4: Simplify right side
    451,346.88x = 155,803,893,779.97
  5. Step 5: Solve for x
    x = 155,803,893,779.97/451,346.88
  6. Step 6: Final answer
    x = 345,197.68

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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.