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Finding the Fourth Proportional to 323,793.10, 485,689.65 and 303,057.10

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Solution

The fourth proportional to 323,793.10, 485,689.65 and 303,057.10 is: 454,585.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,793.10 : 485,689.65 = 303,057.10 : x
  2. Step 2: Convert to fraction form
    323,793.10/485,689.65 = 303,057.10/x
  3. Step 3: Cross multiply
    323,793.10x = 485,689.65 × 303,057.10
  4. Step 4: Simplify right side
    323,793.10x = 147,191,696,829.02
  5. Step 5: Solve for x
    x = 147,191,696,829.02/323,793.10
  6. Step 6: Final answer
    x = 454,585.65

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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.