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Finding the Fourth Proportional to 482,713.56, 666,134.28 and 267,840.54

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Solution

The fourth proportional to 482,713.56, 666,134.28 and 267,840.54 is: 369,614.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,713.56 : 666,134.28 = 267,840.54 : x
  2. Step 2: Convert to fraction form
    482,713.56/666,134.28 = 267,840.54/x
  3. Step 3: Cross multiply
    482,713.56x = 666,134.28 × 267,840.54
  4. Step 4: Simplify right side
    482,713.56x = 178,417,765,267.71
  5. Step 5: Solve for x
    x = 178,417,765,267.71/482,713.56
  6. Step 6: Final answer
    x = 369,614.16

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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.