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Finding the Fourth Proportional to 443,566.40, 664,474.80 and 265,544.60

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Solution

The fourth proportional to 443,566.40, 664,474.80 and 265,544.60 is: 397,793.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,566.40 : 664,474.80 = 265,544.60 : x
  2. Step 2: Convert to fraction form
    443,566.40/664,474.80 = 265,544.60/x
  3. Step 3: Cross multiply
    443,566.40x = 664,474.80 × 265,544.60
  4. Step 4: Simplify right side
    443,566.40x = 176,447,694,976.08
  5. Step 5: Solve for x
    x = 176,447,694,976.08/443,566.40
  6. Step 6: Final answer
    x = 397,793.19

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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.