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Finding the Fourth Proportional to 454,991.85, 682,594.56 and 155,474.91

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Solution

The fourth proportional to 454,991.85, 682,594.56 and 155,474.91 is: 233,248.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,991.85 : 682,594.56 = 155,474.91 : x
  2. Step 2: Convert to fraction form
    454,991.85/682,594.56 = 155,474.91/x
  3. Step 3: Cross multiply
    454,991.85x = 682,594.56 × 155,474.91
  4. Step 4: Simplify right side
    454,991.85x = 106,126,327,782.49
  5. Step 5: Solve for x
    x = 106,126,327,782.49/454,991.85
  6. Step 6: Final answer
    x = 233,248.85

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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.