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Finding the Third Proportional to 657,140 and 1,425,817

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Solution

The third proportional to 657,140 and 1,425,817 is: 3,093,639.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,140 : 1,425,817 = 1,425,817 : x
  2. Step 2: Convert to fraction form
    657,140/1,425,817 = 1,425,817/x
  3. Step 3: Cross multiply
    657,140x = 1,425,817 × 1,425,817
  4. Step 4: Simplify right side
    657,140x = 2,032,954,117,489
  5. Step 5: Solve for x
    x = 2,032,954,117,489/657,140
  6. Step 6: Final answer
    x = 3,093,639.28

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.