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Finding the Third Proportional to 201,915 and 424,748

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Solution

The third proportional to 201,915 and 424,748 is: 893,499.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,915 : 424,748 = 424,748 : x
  2. Step 2: Convert to fraction form
    201,915/424,748 = 424,748/x
  3. Step 3: Cross multiply
    201,915x = 424,748 × 424,748
  4. Step 4: Simplify right side
    201,915x = 180,410,863,504
  5. Step 5: Solve for x
    x = 180,410,863,504/201,915
  6. Step 6: Final answer
    x = 893,499.06

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.