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Finding the Fourth Proportional to 363,907.60, 545,861.40 and 331,248.40

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Solution

The fourth proportional to 363,907.60, 545,861.40 and 331,248.40 is: 496,872.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,907.60 : 545,861.40 = 331,248.40 : x
  2. Step 2: Convert to fraction form
    363,907.60/545,861.40 = 331,248.40/x
  3. Step 3: Cross multiply
    363,907.60x = 545,861.40 × 331,248.40
  4. Step 4: Simplify right side
    363,907.60x = 180,815,715,371.76
  5. Step 5: Solve for x
    x = 180,815,715,371.76/363,907.60
  6. Step 6: Final answer
    x = 496,872.60

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1.5x scale

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.