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Finding the Fourth Proportional to 329,187.40, 493,781.10 and 276,043.30

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Solution

The fourth proportional to 329,187.40, 493,781.10 and 276,043.30 is: 414,064.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,187.40 : 493,781.10 = 276,043.30 : x
  2. Step 2: Convert to fraction form
    329,187.40/493,781.10 = 276,043.30/x
  3. Step 3: Cross multiply
    329,187.40x = 493,781.10 × 276,043.30
  4. Step 4: Simplify right side
    329,187.40x = 136,304,964,321.63
  5. Step 5: Solve for x
    x = 136,304,964,321.63/329,187.40
  6. Step 6: Final answer
    x = 414,064.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.