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Finding the Fourth Proportional to 664,356,349.60, 996,534,524.40 and 406,076,023.60

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Solution

The fourth proportional to 664,356,349.60, 996,534,524.40 and 406,076,023.60 is: 609,114,035.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,356,349.60 : 996,534,524.40 = 406,076,023.60 : x
  2. Step 2: Convert to fraction form
    664,356,349.60/996,534,524.40 = 406,076,023.60/x
  3. Step 3: Cross multiply
    664,356,349.60x = 996,534,524.40 × 406,076,023.60
  4. Step 4: Simplify right side
    664,356,349.60x = 404,668,777,048,469,184
  5. Step 5: Solve for x
    x = 404,668,777,048,469,184/664,356,349.60
  6. Step 6: Final answer
    x = 609,114,035.40

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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.