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Finding the Third Proportional to 1,000,987 and 2,159,437

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Solution

The third proportional to 1,000,987 and 2,159,437 is: 4,658,570.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,987 : 2,159,437 = 2,159,437 : x
  2. Step 2: Convert to fraction form
    1,000,987/2,159,437 = 2,159,437/x
  3. Step 3: Cross multiply
    1,000,987x = 2,159,437 × 2,159,437
  4. Step 4: Simplify right side
    1,000,987x = 4,663,168,156,969
  5. Step 5: Solve for x
    x = 4,663,168,156,969/1,000,987
  6. Step 6: Final answer
    x = 4,658,570.15

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.