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Finding the Fourth Proportional to 474,375.83, 711,551.93 and 221,938.76

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Solution

The fourth proportional to 474,375.83, 711,551.93 and 221,938.76 is: 332,902.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,375.83 : 711,551.93 = 221,938.76 : x
  2. Step 2: Convert to fraction form
    474,375.83/711,551.93 = 221,938.76/x
  3. Step 3: Cross multiply
    474,375.83x = 711,551.93 × 221,938.76
  4. Step 4: Simplify right side
    474,375.83x = 157,920,953,688.99
  5. Step 5: Solve for x
    x = 157,920,953,688.99/474,375.83
  6. Step 6: Final answer
    x = 332,902.61

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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.