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Finding the Fourth Proportional to 605,817.76, 836,029.20 and 351,316.84

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Solution

The fourth proportional to 605,817.76, 836,029.20 and 351,316.84 is: 484,817.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,817.76 : 836,029.20 = 351,316.84 : x
  2. Step 2: Convert to fraction form
    605,817.76/836,029.20 = 351,316.84/x
  3. Step 3: Cross multiply
    605,817.76x = 836,029.20 × 351,316.84
  4. Step 4: Simplify right side
    605,817.76x = 293,711,136,691.73
  5. Step 5: Solve for x
    x = 293,711,136,691.73/605,817.76
  6. Step 6: Final answer
    x = 484,817.64

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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.