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Finding the Fourth Proportional to 419,366.54, 628,557.06 and 194,251.34

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Solution

The fourth proportional to 419,366.54, 628,557.06 and 194,251.34 is: 291,148.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,366.54 : 628,557.06 = 194,251.34 : x
  2. Step 2: Convert to fraction form
    419,366.54/628,557.06 = 194,251.34/x
  3. Step 3: Cross multiply
    419,366.54x = 628,557.06 × 194,251.34
  4. Step 4: Simplify right side
    419,366.54x = 122,098,051,171.46
  5. Step 5: Solve for x
    x = 122,098,051,171.46/419,366.54
  6. Step 6: Final answer
    x = 291,148.77

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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.