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Finding the Third Proportional to 368,408.25 and 553,979.25

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Solution

The third proportional to 368,408.25 and 553,979.25 is: 833,024.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,408.25 : 553,979.25 = 553,979.25 : x
  2. Step 2: Convert to fraction form
    368,408.25/553,979.25 = 553,979.25/x
  3. Step 3: Cross multiply
    368,408.25x = 553,979.25 × 553,979.25
  4. Step 4: Simplify right side
    368,408.25x = 306,893,009,430.56
  5. Step 5: Solve for x
    x = 306,893,009,430.56/368,408.25
  6. Step 6: Final answer
    x = 833,024.26

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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.