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Finding the Fourth Proportional to 481,257.84, 664,137.08 and 266,412.72

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Solution

The fourth proportional to 481,257.84, 664,137.08 and 266,412.72 is: 367,650.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,257.84 : 664,137.08 = 266,412.72 : x
  2. Step 2: Convert to fraction form
    481,257.84/664,137.08 = 266,412.72/x
  3. Step 3: Cross multiply
    481,257.84x = 664,137.08 × 266,412.72
  4. Step 4: Simplify right side
    481,257.84x = 176,934,565,935.66
  5. Step 5: Solve for x
    x = 176,934,565,935.66/481,257.84
  6. Step 6: Final answer
    x = 367,650.25

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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.