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Finding the Fourth Proportional to 1,131,179, 1,696,768.50 and 343,211

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Solution

The fourth proportional to 1,131,179, 1,696,768.50 and 343,211 is: 514,816.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,179 : 1,696,768.50 = 343,211 : x
  2. Step 2: Convert to fraction form
    1,131,179/1,696,768.50 = 343,211/x
  3. Step 3: Cross multiply
    1,131,179x = 1,696,768.50 × 343,211
  4. Step 4: Simplify right side
    1,131,179x = 582,349,613,653.50
  5. Step 5: Solve for x
    x = 582,349,613,653.50/1,131,179
  6. Step 6: Final answer
    x = 514,816.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.