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Finding the Third Proportional to 398,101,484,889 and 877,348,729,692

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Solution

The third proportional to 398,101,484,889 and 877,348,729,692 is: 1,933,529,069,118.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,101,484,889 : 877,348,729,692 = 877,348,729,692 : x
  2. Step 2: Convert to fraction form
    398,101,484,889/877,348,729,692 = 877,348,729,692/x
  3. Step 3: Cross multiply
    398,101,484,889x = 877,348,729,692 × 877,348,729,692
  4. Step 4: Simplify right side
    398,101,484,889x = 769,740,793,492,166,097,764,352
  5. Step 5: Solve for x
    x = 769,740,793,492,166,097,764,352/398,101,484,889
  6. Step 6: Final answer
    x = 1,933,529,069,118.61

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.