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Finding the Third Proportional to 859,386 and 1,890,372

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Solution

The third proportional to 859,386 and 1,890,372 is: 4,158,208.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,386 : 1,890,372 = 1,890,372 : x
  2. Step 2: Convert to fraction form
    859,386/1,890,372 = 1,890,372/x
  3. Step 3: Cross multiply
    859,386x = 1,890,372 × 1,890,372
  4. Step 4: Simplify right side
    859,386x = 3,573,506,298,384
  5. Step 5: Solve for x
    x = 3,573,506,298,384/859,386
  6. Step 6: Final answer
    x = 4,158,208.65

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.