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Finding the Third Proportional to 532,111 and 782,605

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Solution

The third proportional to 532,111 and 782,605 is: 1,151,020.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,111 : 782,605 = 782,605 : x
  2. Step 2: Convert to fraction form
    532,111/782,605 = 782,605/x
  3. Step 3: Cross multiply
    532,111x = 782,605 × 782,605
  4. Step 4: Simplify right side
    532,111x = 612,470,586,025
  5. Step 5: Solve for x
    x = 612,470,586,025/532,111
  6. Step 6: Final answer
    x = 1,151,020.34

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.