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Finding the Third Proportional to 724,628 and 1,573,915

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Solution

The third proportional to 724,628 and 1,573,915 is: 3,418,593.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,628 : 1,573,915 = 1,573,915 : x
  2. Step 2: Convert to fraction form
    724,628/1,573,915 = 1,573,915/x
  3. Step 3: Cross multiply
    724,628x = 1,573,915 × 1,573,915
  4. Step 4: Simplify right side
    724,628x = 2,477,208,427,225
  5. Step 5: Solve for x
    x = 2,477,208,427,225/724,628
  6. Step 6: Final answer
    x = 3,418,593.30

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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.