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Finding the Third Proportional to 709,969 and 1,528,192

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Solution

The third proportional to 709,969 and 1,528,192 is: 3,289,398.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,969 : 1,528,192 = 1,528,192 : x
  2. Step 2: Convert to fraction form
    709,969/1,528,192 = 1,528,192/x
  3. Step 3: Cross multiply
    709,969x = 1,528,192 × 1,528,192
  4. Step 4: Simplify right side
    709,969x = 2,335,370,788,864
  5. Step 5: Solve for x
    x = 2,335,370,788,864/709,969
  6. Step 6: Final answer
    x = 3,289,398.25

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.