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Finding the Third Proportional to 249,216.75 and 386,612.75

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Solution

The third proportional to 249,216.75 and 386,612.75 is: 599,756.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,216.75 : 386,612.75 = 386,612.75 : x
  2. Step 2: Convert to fraction form
    249,216.75/386,612.75 = 386,612.75/x
  3. Step 3: Cross multiply
    249,216.75x = 386,612.75 × 386,612.75
  4. Step 4: Simplify right side
    249,216.75x = 149,469,418,462.56
  5. Step 5: Solve for x
    x = 149,469,418,462.56/249,216.75
  6. Step 6: Final answer
    x = 599,756.71

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.