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Finding the Fourth Proportional to 629,591.59, 868,811.04 and 343,105.53

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Solution

The fourth proportional to 629,591.59, 868,811.04 and 343,105.53 is: 473,471.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,591.59 : 868,811.04 = 343,105.53 : x
  2. Step 2: Convert to fraction form
    629,591.59/868,811.04 = 343,105.53/x
  3. Step 3: Cross multiply
    629,591.59x = 868,811.04 × 343,105.53
  4. Step 4: Simplify right side
    629,591.59x = 298,093,868,005.00
  5. Step 5: Solve for x
    x = 298,093,868,005.00/629,591.59
  6. Step 6: Final answer
    x = 473,471.81

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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.