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Finding the Third Proportional to 290,346 and 625,185

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Solution

The third proportional to 290,346 and 625,185 is: 1,346,174.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,346 : 625,185 = 625,185 : x
  2. Step 2: Convert to fraction form
    290,346/625,185 = 625,185/x
  3. Step 3: Cross multiply
    290,346x = 625,185 × 625,185
  4. Step 4: Simplify right side
    290,346x = 390,856,284,225
  5. Step 5: Solve for x
    x = 390,856,284,225/290,346
  6. Step 6: Final answer
    x = 1,346,174.17

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.