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Finding the Fourth Proportional to 633,642.20, 874,426.22 and 347,168.88

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Solution

The fourth proportional to 633,642.20, 874,426.22 and 347,168.88 is: 479,093.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,642.20 : 874,426.22 = 347,168.88 : x
  2. Step 2: Convert to fraction form
    633,642.20/874,426.22 = 347,168.88/x
  3. Step 3: Cross multiply
    633,642.20x = 874,426.22 × 347,168.88
  4. Step 4: Simplify right side
    633,642.20x = 303,573,569,704.19
  5. Step 5: Solve for x
    x = 303,573,569,704.19/633,642.20
  6. Step 6: Final answer
    x = 479,093.05

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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.