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Finding the Fourth Proportional to 694,087.84, 957,835.83 and 388,164.70

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Solution

The fourth proportional to 694,087.84, 957,835.83 and 388,164.70 is: 535,664.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,087.84 : 957,835.83 = 388,164.70 : x
  2. Step 2: Convert to fraction form
    694,087.84/957,835.83 = 388,164.70/x
  3. Step 3: Cross multiply
    694,087.84x = 957,835.83 × 388,164.70
  4. Step 4: Simplify right side
    694,087.84x = 371,798,057,601.20
  5. Step 5: Solve for x
    x = 371,798,057,601.20/694,087.84
  6. Step 6: Final answer
    x = 535,664.27

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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.