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Finding the Fourth Proportional to 541,915.05, 813,376.94 and 275,874.73

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Solution

The fourth proportional to 541,915.05, 813,376.94 and 275,874.73 is: 414,068.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,915.05 : 813,376.94 = 275,874.73 : x
  2. Step 2: Convert to fraction form
    541,915.05/813,376.94 = 275,874.73/x
  3. Step 3: Cross multiply
    541,915.05x = 813,376.94 × 275,874.73
  4. Step 4: Simplify right side
    541,915.05x = 224,390,143,710.73
  5. Step 5: Solve for x
    x = 224,390,143,710.73/541,915.05
  6. Step 6: Final answer
    x = 414,068.85

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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.