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Finding the Fourth Proportional to 633,712.50, 874,523.28 and 347,243.46

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Solution

The fourth proportional to 633,712.50, 874,523.28 and 347,243.46 is: 479,195.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,712.50 : 874,523.28 = 347,243.46 : x
  2. Step 2: Convert to fraction form
    633,712.50/874,523.28 = 347,243.46/x
  3. Step 3: Cross multiply
    633,712.50x = 874,523.28 × 347,243.46
  4. Step 4: Simplify right side
    633,712.50x = 303,672,489,597.75
  5. Step 5: Solve for x
    x = 303,672,489,597.75/633,712.50
  6. Step 6: Final answer
    x = 479,195.99

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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.