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Finding the Fourth Proportional to 609,630.73, 910,738.23 and 394,647.26

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Solution

The fourth proportional to 609,630.73, 910,738.23 and 394,647.26 is: 589,570.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,630.73 : 910,738.23 = 394,647.26 : x
  2. Step 2: Convert to fraction form
    609,630.73/910,738.23 = 394,647.26/x
  3. Step 3: Cross multiply
    609,630.73x = 910,738.23 × 394,647.26
  4. Step 4: Simplify right side
    609,630.73x = 359,420,346,136.03
  5. Step 5: Solve for x
    x = 359,420,346,136.03/609,630.73
  6. Step 6: Final answer
    x = 589,570.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.