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Finding the Fourth Proportional to 474,376.83, 711,553.42 and 221,939.76

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Solution

The fourth proportional to 474,376.83, 711,553.42 and 221,939.76 is: 332,904.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,376.83 : 711,553.42 = 221,939.76 : x
  2. Step 2: Convert to fraction form
    474,376.83/711,553.42 = 221,939.76/x
  3. Step 3: Cross multiply
    474,376.83x = 711,553.42 × 221,939.76
  4. Step 4: Simplify right side
    474,376.83x = 157,921,995,261.98
  5. Step 5: Solve for x
    x = 157,921,995,261.98/474,376.83
  6. Step 6: Final answer
    x = 332,904.11

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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.