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Finding the Fourth Proportional to 633,542.75, 874,310.75 and 347,062.76

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Solution

The fourth proportional to 633,542.75, 874,310.75 and 347,062.76 is: 478,958.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,542.75 : 874,310.75 = 347,062.76 : x
  2. Step 2: Convert to fraction form
    633,542.75/874,310.75 = 347,062.76/x
  3. Step 3: Cross multiply
    633,542.75x = 874,310.75 × 347,062.76
  4. Step 4: Simplify right side
    633,542.75x = 303,440,701,992.67
  5. Step 5: Solve for x
    x = 303,440,701,992.67/633,542.75
  6. Step 6: Final answer
    x = 478,958.53

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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.