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Finding the Third Proportional to 482,790 and 709,396

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Solution

The third proportional to 482,790 and 709,396 is: 1,042,363.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,790 : 709,396 = 709,396 : x
  2. Step 2: Convert to fraction form
    482,790/709,396 = 709,396/x
  3. Step 3: Cross multiply
    482,790x = 709,396 × 709,396
  4. Step 4: Simplify right side
    482,790x = 503,242,684,816
  5. Step 5: Solve for x
    x = 503,242,684,816/482,790
  6. Step 6: Final answer
    x = 1,042,363.52

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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.