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Finding the Third Proportional to 194,479 and 402,457

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Solution

The third proportional to 194,479 and 402,457 is: 832,848.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,479 : 402,457 = 402,457 : x
  2. Step 2: Convert to fraction form
    194,479/402,457 = 402,457/x
  3. Step 3: Cross multiply
    194,479x = 402,457 × 402,457
  4. Step 4: Simplify right side
    194,479x = 161,971,636,849
  5. Step 5: Solve for x
    x = 161,971,636,849/194,479
  6. Step 6: Final answer
    x = 832,848.98

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.