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Finding the Fourth Proportional to 494,734.80, 694,028.40 and 494,734.80

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Solution

The fourth proportional to 494,734.80, 694,028.40 and 494,734.80 is: 694,028.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,734.80 : 694,028.40 = 494,734.80 : x
  2. Step 2: Convert to fraction form
    494,734.80/694,028.40 = 494,734.80/x
  3. Step 3: Cross multiply
    494,734.80x = 694,028.40 × 494,734.80
  4. Step 4: Simplify right side
    494,734.80x = 343,360,001,668.32
  5. Step 5: Solve for x
    x = 343,360,001,668.32/494,734.80
  6. Step 6: Final answer
    x = 694,028.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.