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Finding the Third Proportional to 296,983.50 and 478,161

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Solution

The third proportional to 296,983.50 and 478,161 is: 769,867.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,983.50 : 478,161 = 478,161 : x
  2. Step 2: Convert to fraction form
    296,983.50/478,161 = 478,161/x
  3. Step 3: Cross multiply
    296,983.50x = 478,161 × 478,161
  4. Step 4: Simplify right side
    296,983.50x = 228,637,941,921
  5. Step 5: Solve for x
    x = 228,637,941,921/296,983.50
  6. Step 6: Final answer
    x = 769,867.49

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.