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Finding the Fourth Proportional to 323,935.38, 485,907.39 and 113,579.46

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Solution

The fourth proportional to 323,935.38, 485,907.39 and 113,579.46 is: 170,370.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,935.38 : 485,907.39 = 113,579.46 : x
  2. Step 2: Convert to fraction form
    323,935.38/485,907.39 = 113,579.46/x
  3. Step 3: Cross multiply
    323,935.38x = 485,907.39 × 113,579.46
  4. Step 4: Simplify right side
    323,935.38x = 55,189,098,966.21
  5. Step 5: Solve for x
    x = 55,189,098,966.21/323,935.38
  6. Step 6: Final answer
    x = 170,370.70

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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.