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Finding the Third Proportional to 862,387 and 1,875,779

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Solution

The third proportional to 862,387 and 1,875,779 is: 4,080,009.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,387 : 1,875,779 = 1,875,779 : x
  2. Step 2: Convert to fraction form
    862,387/1,875,779 = 1,875,779/x
  3. Step 3: Cross multiply
    862,387x = 1,875,779 × 1,875,779
  4. Step 4: Simplify right side
    862,387x = 3,518,546,856,841
  5. Step 5: Solve for x
    x = 3,518,546,856,841/862,387
  6. Step 6: Final answer
    x = 4,080,009.16

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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.