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Finding the Third Proportional to 1,429,498 and 2,211,423

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Solution

The third proportional to 1,429,498 and 2,211,423 is: 3,421,055.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,498 : 2,211,423 = 2,211,423 : x
  2. Step 2: Convert to fraction form
    1,429,498/2,211,423 = 2,211,423/x
  3. Step 3: Cross multiply
    1,429,498x = 2,211,423 × 2,211,423
  4. Step 4: Simplify right side
    1,429,498x = 4,890,391,684,929
  5. Step 5: Solve for x
    x = 4,890,391,684,929/1,429,498
  6. Step 6: Final answer
    x = 3,421,055.28

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.