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Finding the Fourth Proportional to 500,844.36, 751,389.84 and 145,861.32

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Solution

The fourth proportional to 500,844.36, 751,389.84 and 145,861.32 is: 218,827.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,844.36 : 751,389.84 = 145,861.32 : x
  2. Step 2: Convert to fraction form
    500,844.36/751,389.84 = 145,861.32/x
  3. Step 3: Cross multiply
    500,844.36x = 751,389.84 × 145,861.32
  4. Step 4: Simplify right side
    500,844.36x = 109,598,713,896.99
  5. Step 5: Solve for x
    x = 109,598,713,896.99/500,844.36
  6. Step 6: Final answer
    x = 218,827.89

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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.