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Finding the Third Proportional to 755,307 and 1,643,423

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Solution

The third proportional to 755,307 and 1,643,423 is: 3,575,816.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,307 : 1,643,423 = 1,643,423 : x
  2. Step 2: Convert to fraction form
    755,307/1,643,423 = 1,643,423/x
  3. Step 3: Cross multiply
    755,307x = 1,643,423 × 1,643,423
  4. Step 4: Simplify right side
    755,307x = 2,700,839,156,929
  5. Step 5: Solve for x
    x = 2,700,839,156,929/755,307
  6. Step 6: Final answer
    x = 3,575,816.40

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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.