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Finding the Fourth Proportional to 354,562.40, 532,232.40 and 221,592.80

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Solution

The fourth proportional to 354,562.40, 532,232.40 and 221,592.80 is: 332,632.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,562.40 : 532,232.40 = 221,592.80 : x
  2. Step 2: Convert to fraction form
    354,562.40/532,232.40 = 221,592.80/x
  3. Step 3: Cross multiply
    354,562.40x = 532,232.40 × 221,592.80
  4. Step 4: Simplify right side
    354,562.40x = 117,938,867,766.72
  5. Step 5: Solve for x
    x = 117,938,867,766.72/354,562.40
  6. Step 6: Final answer
    x = 332,632.19

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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.