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Finding the Fourth Proportional to 883,003,722.46, 1,218,162,250.19 and 525,571,078.97

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Solution

The fourth proportional to 883,003,722.46, 1,218,162,250.19 and 525,571,078.97 is: 725,060,191.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,003,722.46 : 1,218,162,250.19 = 525,571,078.97 : x
  2. Step 2: Convert to fraction form
    883,003,722.46/1,218,162,250.19 = 525,571,078.97/x
  3. Step 3: Cross multiply
    883,003,722.46x = 1,218,162,250.19 × 525,571,078.97
  4. Step 4: Simplify right side
    883,003,722.46x = 640,230,848,197,240,832
  5. Step 5: Solve for x
    x = 640,230,848,197,240,832/883,003,722.46
  6. Step 6: Final answer
    x = 725,060,191.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.