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Finding the Third Proportional to 346,974 and 517,582

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Solution

The third proportional to 346,974 and 517,582 is: 772,078.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,974 : 517,582 = 517,582 : x
  2. Step 2: Convert to fraction form
    346,974/517,582 = 517,582/x
  3. Step 3: Cross multiply
    346,974x = 517,582 × 517,582
  4. Step 4: Simplify right side
    346,974x = 267,891,126,724
  5. Step 5: Solve for x
    x = 267,891,126,724/346,974
  6. Step 6: Final answer
    x = 772,078.39

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.