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Finding the Third Proportional to 872,610,840 and 1,389,166,500

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Solution

The third proportional to 872,610,840 and 1,389,166,500 is: 2,211,505,377.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,610,840 : 1,389,166,500 = 1,389,166,500 : x
  2. Step 2: Convert to fraction form
    872,610,840/1,389,166,500 = 1,389,166,500/x
  3. Step 3: Cross multiply
    872,610,840x = 1,389,166,500 × 1,389,166,500
  4. Step 4: Simplify right side
    872,610,840x = 1,929,783,564,722,249,984
  5. Step 5: Solve for x
    x = 1,929,783,564,722,249,984/872,610,840
  6. Step 6: Final answer
    x = 2,211,505,377.04

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.