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Finding the Third Proportional to 993,438 and 2,159,730

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Solution

The third proportional to 993,438 and 2,159,730 is: 4,695,243.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,438 : 2,159,730 = 2,159,730 : x
  2. Step 2: Convert to fraction form
    993,438/2,159,730 = 2,159,730/x
  3. Step 3: Cross multiply
    993,438x = 2,159,730 × 2,159,730
  4. Step 4: Simplify right side
    993,438x = 4,664,433,672,900
  5. Step 5: Solve for x
    x = 4,664,433,672,900/993,438
  6. Step 6: Final answer
    x = 4,695,243.86

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.