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Finding the Fourth Proportional to 633,794.28, 874,657.41 and 347,311.86

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Solution

The fourth proportional to 633,794.28, 874,657.41 and 347,311.86 is: 479,302.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,794.28 : 874,657.41 = 347,311.86 : x
  2. Step 2: Convert to fraction form
    633,794.28/874,657.41 = 347,311.86/x
  3. Step 3: Cross multiply
    633,794.28x = 874,657.41 × 347,311.86
  4. Step 4: Simplify right side
    633,794.28x = 303,778,891,929.88
  5. Step 5: Solve for x
    x = 303,778,891,929.88/633,794.28
  6. Step 6: Final answer
    x = 479,302.04

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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.