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Finding the Fourth Proportional to 633,566.85, 874,344.12 and 347,086.86

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Solution

The fourth proportional to 633,566.85, 874,344.12 and 347,086.86 is: 478,991.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,566.85 : 874,344.12 = 347,086.86 : x
  2. Step 2: Convert to fraction form
    633,566.85/874,344.12 = 347,086.86/x
  3. Step 3: Cross multiply
    633,566.85x = 874,344.12 × 347,086.86
  4. Step 4: Simplify right side
    633,566.85x = 303,473,355,170.26
  5. Step 5: Solve for x
    x = 303,473,355,170.26/633,566.85
  6. Step 6: Final answer
    x = 478,991.85

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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.