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Finding the Third Proportional to 435,578 and 653,366

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Solution

The third proportional to 435,578 and 653,366 is: 980,047.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,578 : 653,366 = 653,366 : x
  2. Step 2: Convert to fraction form
    435,578/653,366 = 653,366/x
  3. Step 3: Cross multiply
    435,578x = 653,366 × 653,366
  4. Step 4: Simplify right side
    435,578x = 426,887,129,956
  5. Step 5: Solve for x
    x = 426,887,129,956/435,578
  6. Step 6: Final answer
    x = 980,047.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.