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Finding the Fourth Proportional to 323,793.20, 485,689.80 and 245,061.20

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Solution

The fourth proportional to 323,793.20, 485,689.80 and 245,061.20 is: 367,591.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,793.20 : 485,689.80 = 245,061.20 : x
  2. Step 2: Convert to fraction form
    323,793.20/485,689.80 = 245,061.20/x
  3. Step 3: Cross multiply
    323,793.20x = 485,689.80 × 245,061.20
  4. Step 4: Simplify right side
    323,793.20x = 119,023,725,215.76
  5. Step 5: Solve for x
    x = 119,023,725,215.76/323,793.20
  6. Step 6: Final answer
    x = 367,591.80

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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.