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Finding the Third Proportional to 393,621.75 and 602,871.75

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Solution

The third proportional to 393,621.75 and 602,871.75 is: 923,359.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,621.75 : 602,871.75 = 602,871.75 : x
  2. Step 2: Convert to fraction form
    393,621.75/602,871.75 = 602,871.75/x
  3. Step 3: Cross multiply
    393,621.75x = 602,871.75 × 602,871.75
  4. Step 4: Simplify right side
    393,621.75x = 363,454,346,948.06
  5. Step 5: Solve for x
    x = 363,454,346,948.06/393,621.75
  6. Step 6: Final answer
    x = 923,359.41

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.