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Finding the Fourth Proportional to 694,029.86, 957,754.60 and 388,102.74

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Solution

The fourth proportional to 694,029.86, 957,754.60 and 388,102.74 is: 535,578.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,029.86 : 957,754.60 = 388,102.74 : x
  2. Step 2: Convert to fraction form
    694,029.86/957,754.60 = 388,102.74/x
  3. Step 3: Cross multiply
    694,029.86x = 957,754.60 × 388,102.74
  4. Step 4: Simplify right side
    694,029.86x = 371,707,184,507.60
  5. Step 5: Solve for x
    x = 371,707,184,507.60/694,029.86
  6. Step 6: Final answer
    x = 535,578.09

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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.