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Finding the Third Proportional to 553,638 and 1,207,332

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Solution

The third proportional to 553,638 and 1,207,332 is: 2,632,858.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,638 : 1,207,332 = 1,207,332 : x
  2. Step 2: Convert to fraction form
    553,638/1,207,332 = 1,207,332/x
  3. Step 3: Cross multiply
    553,638x = 1,207,332 × 1,207,332
  4. Step 4: Simplify right side
    553,638x = 1,457,650,558,224
  5. Step 5: Solve for x
    x = 1,457,650,558,224/553,638
  6. Step 6: Final answer
    x = 2,632,858.58

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.