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Finding the Third Proportional to 872,605,558.50 and 1,389,159,267.75

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Solution

The third proportional to 872,605,558.50 and 1,389,159,267.75 is: 2,211,495,735.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,605,558.50 : 1,389,159,267.75 = 1,389,159,267.75 : x
  2. Step 2: Convert to fraction form
    872,605,558.50/1,389,159,267.75 = 1,389,159,267.75/x
  3. Step 3: Cross multiply
    872,605,558.50x = 1,389,159,267.75 × 1,389,159,267.75
  4. Step 4: Simplify right side
    872,605,558.50x = 1,929,763,471,175,716,096
  5. Step 5: Solve for x
    x = 1,929,763,471,175,716,096/872,605,558.50
  6. Step 6: Final answer
    x = 2,211,495,735.25

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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.