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Finding the Fourth Proportional to 481,077.76, 663,893.28 and 266,217.28

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Solution

The fourth proportional to 481,077.76, 663,893.28 and 266,217.28 is: 367,383.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,077.76 : 663,893.28 = 266,217.28 : x
  2. Step 2: Convert to fraction form
    481,077.76/663,893.28 = 266,217.28/x
  3. Step 3: Cross multiply
    481,077.76x = 663,893.28 × 266,217.28
  4. Step 4: Simplify right side
    481,077.76x = 176,739,863,211.88
  5. Step 5: Solve for x
    x = 176,739,863,211.88/481,077.76
  6. Step 6: Final answer
    x = 367,383.15

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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.