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Finding the Third Proportional to 359,720 and 527,916

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Solution

The third proportional to 359,720 and 527,916 is: 774,756.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,720 : 527,916 = 527,916 : x
  2. Step 2: Convert to fraction form
    359,720/527,916 = 527,916/x
  3. Step 3: Cross multiply
    359,720x = 527,916 × 527,916
  4. Step 4: Simplify right side
    359,720x = 278,695,303,056
  5. Step 5: Solve for x
    x = 278,695,303,056/359,720
  6. Step 6: Final answer
    x = 774,756.21

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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.