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Finding the Fourth Proportional to 416,489.45, 624,261.89 and 191,384.73

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Solution

The fourth proportional to 416,489.45, 624,261.89 and 191,384.73 is: 286,860.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,489.45 : 624,261.89 = 191,384.73 : x
  2. Step 2: Convert to fraction form
    416,489.45/624,261.89 = 191,384.73/x
  3. Step 3: Cross multiply
    416,489.45x = 624,261.89 × 191,384.73
  4. Step 4: Simplify right side
    416,489.45x = 119,474,192,310.02
  5. Step 5: Solve for x
    x = 119,474,192,310.02/416,489.45
  6. Step 6: Final answer
    x = 286,860.07

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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.