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Finding the Fourth Proportional to 324,343,487,885.80, 486,515,231,828.70 and 324,343,487,885.80

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Solution

The fourth proportional to 324,343,487,885.80, 486,515,231,828.70 and 324,343,487,885.80 is: 486,515,231,828.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,343,487,885.80 : 486,515,231,828.70 = 324,343,487,885.80 : x
  2. Step 2: Convert to fraction form
    324,343,487,885.80/486,515,231,828.70 = 324,343,487,885.80/x
  3. Step 3: Cross multiply
    324,343,487,885.80x = 486,515,231,828.70 × 324,343,487,885.80
  4. Step 4: Simplify right side
    324,343,487,885.80x = 157,798,047,200,889,138,053,120
  5. Step 5: Solve for x
    x = 157,798,047,200,889,138,053,120/324,343,487,885.80
  6. Step 6: Final answer
    x = 486,515,231,828.70

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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.