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Finding the Fourth Proportional to 576,676.80, 863,868.96 and 451,431.36

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Solution

The fourth proportional to 576,676.80, 863,868.96 and 451,431.36 is: 676,249.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,676.80 : 863,868.96 = 451,431.36 : x
  2. Step 2: Convert to fraction form
    576,676.80/863,868.96 = 451,431.36/x
  3. Step 3: Cross multiply
    576,676.80x = 863,868.96 × 451,431.36
  4. Step 4: Simplify right side
    576,676.80x = 389,977,539,474.59
  5. Step 5: Solve for x
    x = 389,977,539,474.59/576,676.80
  6. Step 6: Final answer
    x = 676,249.75

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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.