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Finding the Fourth Proportional to 479,915.92, 662,256.70 and 275,934.43

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Solution

The fourth proportional to 479,915.92, 662,256.70 and 275,934.43 is: 380,773.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,915.92 : 662,256.70 = 275,934.43 : x
  2. Step 2: Convert to fraction form
    479,915.92/662,256.70 = 275,934.43/x
  3. Step 3: Cross multiply
    479,915.92x = 662,256.70 × 275,934.43
  4. Step 4: Simplify right side
    479,915.92x = 182,739,425,028.18
  5. Step 5: Solve for x
    x = 182,739,425,028.18/479,915.92
  6. Step 6: Final answer
    x = 380,773.83

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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.