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Finding the Fourth Proportional to 633,696.75, 874,501.56 and 347,227.11

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Solution

The fourth proportional to 633,696.75, 874,501.56 and 347,227.11 is: 479,173.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,696.75 : 874,501.56 = 347,227.11 : x
  2. Step 2: Convert to fraction form
    633,696.75/874,501.56 = 347,227.11/x
  3. Step 3: Cross multiply
    633,696.75x = 874,501.56 × 347,227.11
  4. Step 4: Simplify right side
    633,696.75x = 303,650,649,369.29
  5. Step 5: Solve for x
    x = 303,650,649,369.29/633,696.75
  6. Step 6: Final answer
    x = 479,173.44

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Double scale
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1.5x scale

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.