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Finding the Fourth Proportional to 663,449.80, 995,304.30 and 264,022.60

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Solution

The fourth proportional to 663,449.80, 995,304.30 and 264,022.60 is: 396,085.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,449.80 : 995,304.30 = 264,022.60 : x
  2. Step 2: Convert to fraction form
    663,449.80/995,304.30 = 264,022.60/x
  3. Step 3: Cross multiply
    663,449.80x = 995,304.30 × 264,022.60
  4. Step 4: Simplify right side
    663,449.80x = 262,782,829,077.18
  5. Step 5: Solve for x
    x = 262,782,829,077.18/663,449.80
  6. Step 6: Final answer
    x = 396,085.47

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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.