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Finding the Third Proportional to 177,572 and 380,416

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Solution

The third proportional to 177,572 and 380,416 is: 814,972.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,572 : 380,416 = 380,416 : x
  2. Step 2: Convert to fraction form
    177,572/380,416 = 380,416/x
  3. Step 3: Cross multiply
    177,572x = 380,416 × 380,416
  4. Step 4: Simplify right side
    177,572x = 144,716,333,056
  5. Step 5: Solve for x
    x = 144,716,333,056/177,572
  6. Step 6: Final answer
    x = 814,972.70

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.