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Finding the Third Proportional to 368,976 and 554,603

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Solution

The third proportional to 368,976 and 554,603 is: 833,616.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,976 : 554,603 = 554,603 : x
  2. Step 2: Convert to fraction form
    368,976/554,603 = 554,603/x
  3. Step 3: Cross multiply
    368,976x = 554,603 × 554,603
  4. Step 4: Simplify right side
    368,976x = 307,584,487,609
  5. Step 5: Solve for x
    x = 307,584,487,609/368,976
  6. Step 6: Final answer
    x = 833,616.52

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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.