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Finding the Third Proportional to 491,439 and 736,430

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Solution

The third proportional to 491,439 and 736,430 is: 1,103,553.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,439 : 736,430 = 736,430 : x
  2. Step 2: Convert to fraction form
    491,439/736,430 = 736,430/x
  3. Step 3: Cross multiply
    491,439x = 736,430 × 736,430
  4. Step 4: Simplify right side
    491,439x = 542,329,144,900
  5. Step 5: Solve for x
    x = 542,329,144,900/491,439
  6. Step 6: Final answer
    x = 1,103,553.33

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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.