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Finding the Fourth Proportional to 451,464.32, 622,978.88 and 250,243.20

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Solution

The fourth proportional to 451,464.32, 622,978.88 and 250,243.20 is: 345,312.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,464.32 : 622,978.88 = 250,243.20 : x
  2. Step 2: Convert to fraction form
    451,464.32/622,978.88 = 250,243.20/x
  3. Step 3: Cross multiply
    451,464.32x = 622,978.88 × 250,243.20
  4. Step 4: Simplify right side
    451,464.32x = 155,896,228,463.62
  5. Step 5: Solve for x
    x = 155,896,228,463.62/451,464.32
  6. Step 6: Final answer
    x = 345,312.40

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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.