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Finding the Third Proportional to 873,669 and 1,868,778

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Solution

The third proportional to 873,669 and 1,868,778 is: 3,997,316.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,669 : 1,868,778 = 1,868,778 : x
  2. Step 2: Convert to fraction form
    873,669/1,868,778 = 1,868,778/x
  3. Step 3: Cross multiply
    873,669x = 1,868,778 × 1,868,778
  4. Step 4: Simplify right side
    873,669x = 3,492,331,213,284
  5. Step 5: Solve for x
    x = 3,492,331,213,284/873,669
  6. Step 6: Final answer
    x = 3,997,316.16

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.