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Finding the Fourth Proportional to 496,176.80, 744,265.20 and 479,069.60

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Solution

The fourth proportional to 496,176.80, 744,265.20 and 479,069.60 is: 718,604.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,176.80 : 744,265.20 = 479,069.60 : x
  2. Step 2: Convert to fraction form
    496,176.80/744,265.20 = 479,069.60/x
  3. Step 3: Cross multiply
    496,176.80x = 744,265.20 × 479,069.60
  4. Step 4: Simplify right side
    496,176.80x = 356,554,831,657.92
  5. Step 5: Solve for x
    x = 356,554,831,657.92/496,176.80
  6. Step 6: Final answer
    x = 718,604.40

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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.