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Finding the Fourth Proportional to 331,885,335.80, 496,871,409.90 and 331,885,335.80

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Solution

The fourth proportional to 331,885,335.80, 496,871,409.90 and 331,885,335.80 is: 496,871,409.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,885,335.80 : 496,871,409.90 = 331,885,335.80 : x
  2. Step 2: Convert to fraction form
    331,885,335.80/496,871,409.90 = 331,885,335.80/x
  3. Step 3: Cross multiply
    331,885,335.80x = 496,871,409.90 × 331,885,335.80
  4. Step 4: Simplify right side
    331,885,335.80x = 164,904,334,724,080,928
  5. Step 5: Solve for x
    x = 164,904,334,724,080,928/331,885,335.80
  6. Step 6: Final answer
    x = 496,871,409.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.