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Finding the Fourth Proportional to 331,084.80, 496,627.20 and 297,907.20

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Solution

The fourth proportional to 331,084.80, 496,627.20 and 297,907.20 is: 446,860.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,084.80 : 496,627.20 = 297,907.20 : x
  2. Step 2: Convert to fraction form
    331,084.80/496,627.20 = 297,907.20/x
  3. Step 3: Cross multiply
    331,084.80x = 496,627.20 × 297,907.20
  4. Step 4: Simplify right side
    331,084.80x = 147,948,818,595.84
  5. Step 5: Solve for x
    x = 147,948,818,595.84/331,084.80
  6. Step 6: Final answer
    x = 446,860.80

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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.