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Finding the Fourth Proportional to 633,738.48, 874,673.91 and 404,367

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Solution

The fourth proportional to 633,738.48, 874,673.91 and 404,367 is: 558,099.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,738.48 : 874,673.91 = 404,367 : x
  2. Step 2: Convert to fraction form
    633,738.48/874,673.91 = 404,367/x
  3. Step 3: Cross multiply
    633,738.48x = 874,673.91 × 404,367
  4. Step 4: Simplify right side
    633,738.48x = 353,689,264,964.97
  5. Step 5: Solve for x
    x = 353,689,264,964.97/633,738.48
  6. Step 6: Final answer
    x = 558,099.71

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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.