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Finding the Fourth Proportional to 611,489,155.83, 843,864,742.81 and 347,165,755.17

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Solution

The fourth proportional to 611,489,155.83, 843,864,742.81 and 347,165,755.17 is: 479,094,253.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,489,155.83 : 843,864,742.81 = 347,165,755.17 : x
  2. Step 2: Convert to fraction form
    611,489,155.83/843,864,742.81 = 347,165,755.17/x
  3. Step 3: Cross multiply
    611,489,155.83x = 843,864,742.81 × 347,165,755.17
  4. Step 4: Simplify right side
    611,489,155.83x = 292,960,940,698,971,456
  5. Step 5: Solve for x
    x = 292,960,940,698,971,456/611,489,155.83
  6. Step 6: Final answer
    x = 479,094,253.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.