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Finding the Fourth Proportional to 694,790.37, 958,592.23 and 388,818.14

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Solution

The fourth proportional to 694,790.37, 958,592.23 and 388,818.14 is: 536,446.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,790.37 : 958,592.23 = 388,818.14 : x
  2. Step 2: Convert to fraction form
    694,790.37/958,592.23 = 388,818.14/x
  3. Step 3: Cross multiply
    694,790.37x = 958,592.23 × 388,818.14
  4. Step 4: Simplify right side
    694,790.37x = 372,718,042,122.05
  5. Step 5: Solve for x
    x = 372,718,042,122.05/694,790.37
  6. Step 6: Final answer
    x = 536,446.76

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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.