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Finding the Fourth Proportional to 356,285.84, 491,656.92 and 195,141.61

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Solution

The fourth proportional to 356,285.84, 491,656.92 and 195,141.61 is: 269,285.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,285.84 : 491,656.92 = 195,141.61 : x
  2. Step 2: Convert to fraction form
    356,285.84/491,656.92 = 195,141.61/x
  3. Step 3: Cross multiply
    356,285.84x = 491,656.92 × 195,141.61
  4. Step 4: Simplify right side
    356,285.84x = 95,942,720,478.16
  5. Step 5: Solve for x
    x = 95,942,720,478.16/356,285.84
  6. Step 6: Final answer
    x = 269,285.81

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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.