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Finding the Third Proportional to 316,019.81 and 696,459.94

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Solution

The third proportional to 316,019.81 and 696,459.94 is: 1,534,892.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,019.81 : 696,459.94 = 696,459.94 : x
  2. Step 2: Convert to fraction form
    316,019.81/696,459.94 = 696,459.94/x
  3. Step 3: Cross multiply
    316,019.81x = 696,459.94 × 696,459.94
  4. Step 4: Simplify right side
    316,019.81x = 485,056,444,542.50
  5. Step 5: Solve for x
    x = 485,056,444,542.50/316,019.81
  6. Step 6: Final answer
    x = 1,534,892.51

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.