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Finding the Fourth Proportional to 501,430.91, 751,439.16 and 276,892.43

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Solution

The fourth proportional to 501,430.91, 751,439.16 and 276,892.43 is: 414,948.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,430.91 : 751,439.16 = 276,892.43 : x
  2. Step 2: Convert to fraction form
    501,430.91/751,439.16 = 276,892.43/x
  3. Step 3: Cross multiply
    501,430.91x = 751,439.16 × 276,892.43
  4. Step 4: Simplify right side
    501,430.91x = 208,067,811,252.36
  5. Step 5: Solve for x
    x = 208,067,811,252.36/501,430.91
  6. Step 6: Final answer
    x = 414,948.12

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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.