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Finding the Fourth Proportional to 449,843.60, 674,765.40 and 323,872.40

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Solution

The fourth proportional to 449,843.60, 674,765.40 and 323,872.40 is: 485,808.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,843.60 : 674,765.40 = 323,872.40 : x
  2. Step 2: Convert to fraction form
    449,843.60/674,765.40 = 323,872.40/x
  3. Step 3: Cross multiply
    449,843.60x = 674,765.40 × 323,872.40
  4. Step 4: Simplify right side
    449,843.60x = 218,537,889,534.96
  5. Step 5: Solve for x
    x = 218,537,889,534.96/449,843.60
  6. Step 6: Final answer
    x = 485,808.60

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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.