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Finding the Third Proportional to 388,780.13 and 608,549.63

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Solution

The third proportional to 388,780.13 and 608,549.63 is: 952,550.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,780.13 : 608,549.63 = 608,549.63 : x
  2. Step 2: Convert to fraction form
    388,780.13/608,549.63 = 608,549.63/x
  3. Step 3: Cross multiply
    388,780.13x = 608,549.63 × 608,549.63
  4. Step 4: Simplify right side
    388,780.13x = 370,332,646,087.64
  5. Step 5: Solve for x
    x = 370,332,646,087.64/388,780.13
  6. Step 6: Final answer
    x = 952,550.36

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.