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Finding the Fourth Proportional to 394,518.30, 591,777.45 and 394,518.30

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Solution

The fourth proportional to 394,518.30, 591,777.45 and 394,518.30 is: 591,777.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,518.30 : 591,777.45 = 394,518.30 : x
  2. Step 2: Convert to fraction form
    394,518.30/591,777.45 = 394,518.30/x
  3. Step 3: Cross multiply
    394,518.30x = 591,777.45 × 394,518.30
  4. Step 4: Simplify right side
    394,518.30x = 233,467,033,552.34
  5. Step 5: Solve for x
    x = 233,467,033,552.34/394,518.30
  6. Step 6: Final answer
    x = 591,777.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.