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Finding the Fourth Proportional to 323,764.20, 485,646.30 and 245,032.20

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Solution

The fourth proportional to 323,764.20, 485,646.30 and 245,032.20 is: 367,548.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,764.20 : 485,646.30 = 245,032.20 : x
  2. Step 2: Convert to fraction form
    323,764.20/485,646.30 = 245,032.20/x
  3. Step 3: Cross multiply
    323,764.20x = 485,646.30 × 245,032.20
  4. Step 4: Simplify right side
    323,764.20x = 118,998,981,310.86
  5. Step 5: Solve for x
    x = 118,998,981,310.86/323,764.20
  6. Step 6: Final answer
    x = 367,548.30

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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.