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Finding the Fourth Proportional to 323,049.60, 445,804.56 and 188,913.60

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Solution

The fourth proportional to 323,049.60, 445,804.56 and 188,913.60 is: 260,698.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,049.60 : 445,804.56 = 188,913.60 : x
  2. Step 2: Convert to fraction form
    323,049.60/445,804.56 = 188,913.60/x
  3. Step 3: Cross multiply
    323,049.60x = 445,804.56 × 188,913.60
  4. Step 4: Simplify right side
    323,049.60x = 84,218,544,326.02
  5. Step 5: Solve for x
    x = 84,218,544,326.02/323,049.60
  6. Step 6: Final answer
    x = 260,698.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.