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Finding the Fourth Proportional to 398,798.64, 550,067.22 and 237,528.72

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Solution

The fourth proportional to 398,798.64, 550,067.22 and 237,528.72 is: 327,625.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,798.64 : 550,067.22 = 237,528.72 : x
  2. Step 2: Convert to fraction form
    398,798.64/550,067.22 = 237,528.72/x
  3. Step 3: Cross multiply
    398,798.64x = 550,067.22 × 237,528.72
  4. Step 4: Simplify right side
    398,798.64x = 130,656,762,680.56
  5. Step 5: Solve for x
    x = 130,656,762,680.56/398,798.64
  6. Step 6: Final answer
    x = 327,625.90

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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.