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Finding the Third Proportional to 517,440 and 772,965

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Solution

The third proportional to 517,440 and 772,965 is: 1,154,674.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,440 : 772,965 = 772,965 : x
  2. Step 2: Convert to fraction form
    517,440/772,965 = 772,965/x
  3. Step 3: Cross multiply
    517,440x = 772,965 × 772,965
  4. Step 4: Simplify right side
    517,440x = 597,474,891,225
  5. Step 5: Solve for x
    x = 597,474,891,225/517,440
  6. Step 6: Final answer
    x = 1,154,674.73

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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.