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Finding the Fourth Proportional to 627,872.28, 868,745.52 and 547,467.24

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Solution

The fourth proportional to 627,872.28, 868,745.52 and 547,467.24 is: 757,494.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,872.28 : 868,745.52 = 547,467.24 : x
  2. Step 2: Convert to fraction form
    627,872.28/868,745.52 = 547,467.24/x
  3. Step 3: Cross multiply
    627,872.28x = 868,745.52 × 547,467.24
  4. Step 4: Simplify right side
    627,872.28x = 475,609,712,096.77
  5. Step 5: Solve for x
    x = 475,609,712,096.77/627,872.28
  6. Step 6: Final answer
    x = 757,494.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.