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Finding the Fourth Proportional to 662,568.80, 993,634.50 and 213,182.24

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Solution

The fourth proportional to 662,568.80, 993,634.50 and 213,182.24 is: 319,702.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,568.80 : 993,634.50 = 213,182.24 : x
  2. Step 2: Convert to fraction form
    662,568.80/993,634.50 = 213,182.24/x
  3. Step 3: Cross multiply
    662,568.80x = 993,634.50 × 213,182.24
  4. Step 4: Simplify right side
    662,568.80x = 211,825,228,451.28
  5. Step 5: Solve for x
    x = 211,825,228,451.28/662,568.80
  6. Step 6: Final answer
    x = 319,702.99

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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.