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Finding the Third Proportional to 423,573.75 and 636,298.88

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Solution

The third proportional to 423,573.75 and 636,298.88 is: 955,857.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,573.75 : 636,298.88 = 636,298.88 : x
  2. Step 2: Convert to fraction form
    423,573.75/636,298.88 = 636,298.88/x
  3. Step 3: Cross multiply
    423,573.75x = 636,298.88 × 636,298.88
  4. Step 4: Simplify right side
    423,573.75x = 404,876,258,326.27
  5. Step 5: Solve for x
    x = 404,876,258,326.27/423,573.75
  6. Step 6: Final answer
    x = 955,857.77

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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.