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Finding the Fourth Proportional to 629,338.05, 868,915.89 and 483,887.97

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Solution

The fourth proportional to 629,338.05, 868,915.89 and 483,887.97 is: 668,095.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,338.05 : 868,915.89 = 483,887.97 : x
  2. Step 2: Convert to fraction form
    629,338.05/868,915.89 = 483,887.97/x
  3. Step 3: Cross multiply
    629,338.05x = 868,915.89 × 483,887.97
  4. Step 4: Simplify right side
    629,338.05x = 420,457,946,112.84
  5. Step 5: Solve for x
    x = 420,457,946,112.84/629,338.05
  6. Step 6: Final answer
    x = 668,095.54

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1.5x scale

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.