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Finding the Third Proportional to 554,421 and 1,191,663

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Solution

The third proportional to 554,421 and 1,191,663 is: 2,561,340.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,421 : 1,191,663 = 1,191,663 : x
  2. Step 2: Convert to fraction form
    554,421/1,191,663 = 1,191,663/x
  3. Step 3: Cross multiply
    554,421x = 1,191,663 × 1,191,663
  4. Step 4: Simplify right side
    554,421x = 1,420,060,705,569
  5. Step 5: Solve for x
    x = 1,420,060,705,569/554,421
  6. Step 6: Final answer
    x = 2,561,340.04

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.