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Finding the Fourth Proportional to 323,018.25, 445,807.49 and 185,251.15

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Solution

The fourth proportional to 323,018.25, 445,807.49 and 185,251.15 is: 255,670.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,018.25 : 445,807.49 = 185,251.15 : x
  2. Step 2: Convert to fraction form
    323,018.25/445,807.49 = 185,251.15/x
  3. Step 3: Cross multiply
    323,018.25x = 445,807.49 × 185,251.15
  4. Step 4: Simplify right side
    323,018.25x = 82,586,350,201.11
  5. Step 5: Solve for x
    x = 82,586,350,201.11/323,018.25
  6. Step 6: Final answer
    x = 255,670.85

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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.