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Finding the Fourth Proportional to 603,505.56, 905,257.12 and 154,226.40

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Solution

The fourth proportional to 603,505.56, 905,257.12 and 154,226.40 is: 231,339.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,505.56 : 905,257.12 = 154,226.40 : x
  2. Step 2: Convert to fraction form
    603,505.56/905,257.12 = 154,226.40/x
  3. Step 3: Cross multiply
    603,505.56x = 905,257.12 × 154,226.40
  4. Step 4: Simplify right side
    603,505.56x = 139,614,546,691.97
  5. Step 5: Solve for x
    x = 139,614,546,691.97/603,505.56
  6. Step 6: Final answer
    x = 231,339.29

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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.