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Finding the Fourth Proportional to 354,706.80, 532,060.20 and 221,846.55

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Solution

The fourth proportional to 354,706.80, 532,060.20 and 221,846.55 is: 332,769.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,706.80 : 532,060.20 = 221,846.55 : x
  2. Step 2: Convert to fraction form
    354,706.80/532,060.20 = 221,846.55/x
  3. Step 3: Cross multiply
    354,706.80x = 532,060.20 × 221,846.55
  4. Step 4: Simplify right side
    354,706.80x = 118,035,719,762.31
  5. Step 5: Solve for x
    x = 118,035,719,762.31/354,706.80
  6. Step 6: Final answer
    x = 332,769.83

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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.