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Finding the Fourth Proportional to 354,744.40, 532,116.60 and 331,243.60

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Solution

The fourth proportional to 354,744.40, 532,116.60 and 331,243.60 is: 496,865.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,744.40 : 532,116.60 = 331,243.60 : x
  2. Step 2: Convert to fraction form
    354,744.40/532,116.60 = 331,243.60/x
  3. Step 3: Cross multiply
    354,744.40x = 532,116.60 × 331,243.60
  4. Step 4: Simplify right side
    354,744.40x = 176,260,218,203.76
  5. Step 5: Solve for x
    x = 176,260,218,203.76/354,744.40
  6. Step 6: Final answer
    x = 496,865.40

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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.