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Finding the Fourth Proportional to 694,136, 957,908.32 and 376,184

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Solution

The fourth proportional to 694,136, 957,908.32 and 376,184 is: 519,134.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,136 : 957,908.32 = 376,184 : x
  2. Step 2: Convert to fraction form
    694,136/957,908.32 = 376,184/x
  3. Step 3: Cross multiply
    694,136x = 957,908.32 × 376,184
  4. Step 4: Simplify right side
    694,136x = 360,349,783,450.88
  5. Step 5: Solve for x
    x = 360,349,783,450.88/694,136
  6. Step 6: Final answer
    x = 519,134.27

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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.