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Finding the Third Proportional to 321,038 and 476,934

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Solution

The third proportional to 321,038 and 476,934 is: 708,533.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,038 : 476,934 = 476,934 : x
  2. Step 2: Convert to fraction form
    321,038/476,934 = 476,934/x
  3. Step 3: Cross multiply
    321,038x = 476,934 × 476,934
  4. Step 4: Simplify right side
    321,038x = 227,466,040,356
  5. Step 5: Solve for x
    x = 227,466,040,356/321,038
  6. Step 6: Final answer
    x = 708,533.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.