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Finding the Fourth Proportional to 366,215.72, 505,428.89 and 264,570.03

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Solution

The fourth proportional to 366,215.72, 505,428.89 and 264,570.03 is: 365,143.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,215.72 : 505,428.89 = 264,570.03 : x
  2. Step 2: Convert to fraction form
    366,215.72/505,428.89 = 264,570.03/x
  3. Step 3: Cross multiply
    366,215.72x = 505,428.89 × 264,570.03
  4. Step 4: Simplify right side
    366,215.72x = 133,721,335,267.32
  5. Step 5: Solve for x
    x = 133,721,335,267.32/366,215.72
  6. Step 6: Final answer
    x = 365,143.63

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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.