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Finding the Fourth Proportional to 808,583,754.81, 1,115,845,580.83 and 437,305,785.78

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Solution

The fourth proportional to 808,583,754.81, 1,115,845,580.83 and 437,305,785.78 is: 603,481,983.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,583,754.81 : 1,115,845,580.83 = 437,305,785.78 : x
  2. Step 2: Convert to fraction form
    808,583,754.81/1,115,845,580.83 = 437,305,785.78/x
  3. Step 3: Cross multiply
    808,583,754.81x = 1,115,845,580.83 × 437,305,785.78
  4. Step 4: Simplify right side
    808,583,754.81x = 487,965,728,534,003,584
  5. Step 5: Solve for x
    x = 487,965,728,534,003,584/808,583,754.81
  6. Step 6: Final answer
    x = 603,481,983.94

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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.