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Finding the Third Proportional to 638,615.25 and 1,064,316.38

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Solution

The third proportional to 638,615.25 and 1,064,316.38 is: 1,773,790.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,615.25 : 1,064,316.38 = 1,064,316.38 : x
  2. Step 2: Convert to fraction form
    638,615.25/1,064,316.38 = 1,064,316.38/x
  3. Step 3: Cross multiply
    638,615.25x = 1,064,316.38 × 1,064,316.38
  4. Step 4: Simplify right side
    638,615.25x = 1,132,769,346,093.14
  5. Step 5: Solve for x
    x = 1,132,769,346,093.14/638,615.25
  6. Step 6: Final answer
    x = 1,773,790.00

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.