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Finding the Fourth Proportional to 331,362.20, 497,043.30 and 295,419.80

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Solution

The fourth proportional to 331,362.20, 497,043.30 and 295,419.80 is: 443,129.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,362.20 : 497,043.30 = 295,419.80 : x
  2. Step 2: Convert to fraction form
    331,362.20/497,043.30 = 295,419.80/x
  3. Step 3: Cross multiply
    331,362.20x = 497,043.30 × 295,419.80
  4. Step 4: Simplify right side
    331,362.20x = 146,836,432,277.34
  5. Step 5: Solve for x
    x = 146,836,432,277.34/331,362.20
  6. Step 6: Final answer
    x = 443,129.70

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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.