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Finding the Fourth Proportional to 633,805.40, 874,644.01 and 343,411.29

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Solution

The fourth proportional to 633,805.40, 874,644.01 and 343,411.29 is: 473,903.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,805.40 : 874,644.01 = 343,411.29 : x
  2. Step 2: Convert to fraction form
    633,805.40/874,644.01 = 343,411.29/x
  3. Step 3: Cross multiply
    633,805.40x = 874,644.01 × 343,411.29
  4. Step 4: Simplify right side
    633,805.40x = 300,362,626,906.35
  5. Step 5: Solve for x
    x = 300,362,626,906.35/633,805.40
  6. Step 6: Final answer
    x = 473,903.54

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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.