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Finding the Third Proportional to 187,461 and 402,624

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Solution

The third proportional to 187,461 and 402,624 is: 864,745.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,461 : 402,624 = 402,624 : x
  2. Step 2: Convert to fraction form
    187,461/402,624 = 402,624/x
  3. Step 3: Cross multiply
    187,461x = 402,624 × 402,624
  4. Step 4: Simplify right side
    187,461x = 162,106,085,376
  5. Step 5: Solve for x
    x = 162,106,085,376/187,461
  6. Step 6: Final answer
    x = 864,745.66

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.