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Finding the Third Proportional to 473,212.13 and 688,221.56

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Solution

The third proportional to 473,212.13 and 688,221.56 is: 1,000,923.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,212.13 : 688,221.56 = 688,221.56 : x
  2. Step 2: Convert to fraction form
    473,212.13/688,221.56 = 688,221.56/x
  3. Step 3: Cross multiply
    473,212.13x = 688,221.56 × 688,221.56
  4. Step 4: Simplify right side
    473,212.13x = 473,648,919,089.94
  5. Step 5: Solve for x
    x = 473,648,919,089.94/473,212.13
  6. Step 6: Final answer
    x = 1,000,923.04

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.