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Finding the Fourth Proportional to 636,920,270.64, 955,037,919.96 and 374,695,471.44

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Solution

The fourth proportional to 636,920,270.64, 955,037,919.96 and 374,695,471.44 is: 561,841,725.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,920,270.64 : 955,037,919.96 = 374,695,471.44 : x
  2. Step 2: Convert to fraction form
    636,920,270.64/955,037,919.96 = 374,695,471.44/x
  3. Step 3: Cross multiply
    636,920,270.64x = 955,037,919.96 × 374,695,471.44
  4. Step 4: Simplify right side
    636,920,270.64x = 357,848,383,662,489,216
  5. Step 5: Solve for x
    x = 357,848,383,662,489,216/636,920,270.64
  6. Step 6: Final answer
    x = 561,841,725.19

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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.