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Finding the Third Proportional to 643,412.50 and 1,392,737

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Solution

The third proportional to 643,412.50 and 1,392,737 is: 3,014,732.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,412.50 : 1,392,737 = 1,392,737 : x
  2. Step 2: Convert to fraction form
    643,412.50/1,392,737 = 1,392,737/x
  3. Step 3: Cross multiply
    643,412.50x = 1,392,737 × 1,392,737
  4. Step 4: Simplify right side
    643,412.50x = 1,939,716,351,169
  5. Step 5: Solve for x
    x = 1,939,716,351,169/643,412.50
  6. Step 6: Final answer
    x = 3,014,732.15

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.