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Finding the Fourth Proportional to 328,634.60, 453,520.15 and 185,394.20

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Solution

The fourth proportional to 328,634.60, 453,520.15 and 185,394.20 is: 255,846.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,634.60 : 453,520.15 = 185,394.20 : x
  2. Step 2: Convert to fraction form
    328,634.60/453,520.15 = 185,394.20/x
  3. Step 3: Cross multiply
    328,634.60x = 453,520.15 × 185,394.20
  4. Step 4: Simplify right side
    328,634.60x = 84,080,002,662.04
  5. Step 5: Solve for x
    x = 84,080,002,662.04/328,634.60
  6. Step 6: Final answer
    x = 255,846.47

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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.