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Finding the Fourth Proportional to 211,632.40, 317,448.60 and 203,467.60

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Solution

The fourth proportional to 211,632.40, 317,448.60 and 203,467.60 is: 305,201.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,632.40 : 317,448.60 = 203,467.60 : x
  2. Step 2: Convert to fraction form
    211,632.40/317,448.60 = 203,467.60/x
  3. Step 3: Cross multiply
    211,632.40x = 317,448.60 × 203,467.60
  4. Step 4: Simplify right side
    211,632.40x = 64,590,504,765.36
  5. Step 5: Solve for x
    x = 64,590,504,765.36/211,632.40
  6. Step 6: Final answer
    x = 305,201.40

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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.