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Finding the Third Proportional to 425,924 and 659,406

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Solution

The third proportional to 425,924 and 659,406 is: 1,020,877.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,924 : 659,406 = 659,406 : x
  2. Step 2: Convert to fraction form
    425,924/659,406 = 659,406/x
  3. Step 3: Cross multiply
    425,924x = 659,406 × 659,406
  4. Step 4: Simplify right side
    425,924x = 434,816,272,836
  5. Step 5: Solve for x
    x = 434,816,272,836/425,924
  6. Step 6: Final answer
    x = 1,020,877.60

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.