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Finding the Fourth Proportional to 633,542.50, 874,310.40 and 347,062.51

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Solution

The fourth proportional to 633,542.50, 874,310.40 and 347,062.51 is: 478,958.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,542.50 : 874,310.40 = 347,062.51 : x
  2. Step 2: Convert to fraction form
    633,542.50/874,310.40 = 347,062.51/x
  3. Step 3: Cross multiply
    633,542.50x = 874,310.40 × 347,062.51
  4. Step 4: Simplify right side
    633,542.50x = 303,440,359,757.33
  5. Step 5: Solve for x
    x = 303,440,359,757.33/633,542.50
  6. Step 6: Final answer
    x = 478,958.18

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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.