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Finding the Third Proportional to 528,819 and 805,622

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Solution

The third proportional to 528,819 and 805,622 is: 1,227,313.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,819 : 805,622 = 805,622 : x
  2. Step 2: Convert to fraction form
    528,819/805,622 = 805,622/x
  3. Step 3: Cross multiply
    528,819x = 805,622 × 805,622
  4. Step 4: Simplify right side
    528,819x = 649,026,806,884
  5. Step 5: Solve for x
    x = 649,026,806,884/528,819
  6. Step 6: Final answer
    x = 1,227,313.71

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.