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Finding the Fourth Proportional to 496,743.40, 746,439.90 and 435,029.80

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Solution

The fourth proportional to 496,743.40, 746,439.90 and 435,029.80 is: 653,704.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,743.40 : 746,439.90 = 435,029.80 : x
  2. Step 2: Convert to fraction form
    496,743.40/746,439.90 = 435,029.80/x
  3. Step 3: Cross multiply
    496,743.40x = 746,439.90 × 435,029.80
  4. Step 4: Simplify right side
    496,743.40x = 324,723,600,409.02
  5. Step 5: Solve for x
    x = 324,723,600,409.02/496,743.40
  6. Step 6: Final answer
    x = 653,704.91

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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.