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Finding the Third Proportional to 316,491,825,988 and 427,021,783,810

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Solution

The third proportional to 316,491,825,988 and 427,021,783,810 is: 576,152,648,742.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,491,825,988 : 427,021,783,810 = 427,021,783,810 : x
  2. Step 2: Convert to fraction form
    316,491,825,988/427,021,783,810 = 427,021,783,810/x
  3. Step 3: Cross multiply
    316,491,825,988x = 427,021,783,810 × 427,021,783,810
  4. Step 4: Simplify right side
    316,491,825,988x = 182,347,603,848,274,364,071,936
  5. Step 5: Solve for x
    x = 182,347,603,848,274,364,071,936/316,491,825,988
  6. Step 6: Final answer
    x = 576,152,648,742.30

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.