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Finding the Fourth Proportional to 694,094.28, 957,843.36 and 388,167.18

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Solution

The fourth proportional to 694,094.28, 957,843.36 and 388,167.18 is: 535,666.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,094.28 : 957,843.36 = 388,167.18 : x
  2. Step 2: Convert to fraction form
    694,094.28/957,843.36 = 388,167.18/x
  3. Step 3: Cross multiply
    694,094.28x = 957,843.36 × 388,167.18
  4. Step 4: Simplify right side
    694,094.28x = 371,803,355,932.93
  5. Step 5: Solve for x
    x = 371,803,355,932.93/694,094.28
  6. Step 6: Final answer
    x = 535,666.94

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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.