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Finding the Fourth Proportional to 479,533,408.30, 672,027,016.10 and 479,533,408.30

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Solution

The fourth proportional to 479,533,408.30, 672,027,016.10 and 479,533,408.30 is: 672,027,016.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,533,408.30 : 672,027,016.10 = 479,533,408.30 : x
  2. Step 2: Convert to fraction form
    479,533,408.30/672,027,016.10 = 479,533,408.30/x
  3. Step 3: Cross multiply
    479,533,408.30x = 672,027,016.10 × 479,533,408.30
  4. Step 4: Simplify right side
    479,533,408.30x = 322,259,405,500,112,000
  5. Step 5: Solve for x
    x = 322,259,405,500,112,000/479,533,408.30
  6. Step 6: Final answer
    x = 672,027,016.10

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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.