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Finding the Fourth Proportional to 277,267.76, 382,732.98 and 215,892.44

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Solution

The fourth proportional to 277,267.76, 382,732.98 and 215,892.44 is: 298,012.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,267.76 : 382,732.98 = 215,892.44 : x
  2. Step 2: Convert to fraction form
    277,267.76/382,732.98 = 215,892.44/x
  3. Step 3: Cross multiply
    277,267.76x = 382,732.98 × 215,892.44
  4. Step 4: Simplify right side
    277,267.76x = 82,629,156,920.67
  5. Step 5: Solve for x
    x = 82,629,156,920.67/277,267.76
  6. Step 6: Final answer
    x = 298,012.13

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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.