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Finding the Fourth Proportional to 449,343,901.60, 629,930,808.80 and 449,343,901.60

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Solution

The fourth proportional to 449,343,901.60, 629,930,808.80 and 449,343,901.60 is: 629,930,808.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,343,901.60 : 629,930,808.80 = 449,343,901.60 : x
  2. Step 2: Convert to fraction form
    449,343,901.60/629,930,808.80 = 449,343,901.60/x
  3. Step 3: Cross multiply
    449,343,901.60x = 629,930,808.80 × 449,343,901.60
  4. Step 4: Simplify right side
    449,343,901.60x = 283,055,567,364,235,616
  5. Step 5: Solve for x
    x = 283,055,567,364,235,616/449,343,901.60
  6. Step 6: Final answer
    x = 629,930,808.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.