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Finding the Fourth Proportional to 449,522.60, 674,080.70 and 239,115.56

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Solution

The fourth proportional to 449,522.60, 674,080.70 and 239,115.56 is: 358,565.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,522.60 : 674,080.70 = 239,115.56 : x
  2. Step 2: Convert to fraction form
    449,522.60/674,080.70 = 239,115.56/x
  3. Step 3: Cross multiply
    449,522.60x = 674,080.70 × 239,115.56
  4. Step 4: Simplify right side
    449,522.60x = 161,183,184,065.69
  5. Step 5: Solve for x
    x = 161,183,184,065.69/449,522.60
  6. Step 6: Final answer
    x = 358,565.25

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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.