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Finding the Fourth Proportional to 457,757.48, 631,680.02 and 253,796.49

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Solution

The fourth proportional to 457,757.48, 631,680.02 and 253,796.49 is: 350,225.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,757.48 : 631,680.02 = 253,796.49 : x
  2. Step 2: Convert to fraction form
    457,757.48/631,680.02 = 253,796.49/x
  3. Step 3: Cross multiply
    457,757.48x = 631,680.02 × 253,796.49
  4. Step 4: Simplify right side
    457,757.48x = 160,318,171,561.88
  5. Step 5: Solve for x
    x = 160,318,171,561.88/457,757.48
  6. Step 6: Final answer
    x = 350,225.13

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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.