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Finding the Fourth Proportional to 301,845.60, 453,286.80 and 213,717.60

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Solution

The fourth proportional to 301,845.60, 453,286.80 and 213,717.60 is: 320,943.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,845.60 : 453,286.80 = 213,717.60 : x
  2. Step 2: Convert to fraction form
    301,845.60/453,286.80 = 213,717.60/x
  3. Step 3: Cross multiply
    301,845.60x = 453,286.80 × 213,717.60
  4. Step 4: Simplify right side
    301,845.60x = 96,875,367,007.68
  5. Step 5: Solve for x
    x = 96,875,367,007.68/301,845.60
  6. Step 6: Final answer
    x = 320,943.45

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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.