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Finding the Third Proportional to 388,494.75 and 602,917.50

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Solution

The third proportional to 388,494.75 and 602,917.50 is: 935,687.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,494.75 : 602,917.50 = 602,917.50 : x
  2. Step 2: Convert to fraction form
    388,494.75/602,917.50 = 602,917.50/x
  3. Step 3: Cross multiply
    388,494.75x = 602,917.50 × 602,917.50
  4. Step 4: Simplify right side
    388,494.75x = 363,509,511,806.25
  5. Step 5: Solve for x
    x = 363,509,511,806.25/388,494.75
  6. Step 6: Final answer
    x = 935,687.06

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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.