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Finding the Third Proportional to 871,043,905 and 1,331,561,472

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Solution

The third proportional to 871,043,905 and 1,331,561,472 is: 2,035,552,907.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,043,905 : 1,331,561,472 = 1,331,561,472 : x
  2. Step 2: Convert to fraction form
    871,043,905/1,331,561,472 = 1,331,561,472/x
  3. Step 3: Cross multiply
    871,043,905x = 1,331,561,472 × 1,331,561,472
  4. Step 4: Simplify right side
    871,043,905x = 1,773,055,953,714,806,784
  5. Step 5: Solve for x
    x = 1,773,055,953,714,806,784/871,043,905
  6. Step 6: Final answer
    x = 2,035,552,907.88

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.