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Finding the Fourth Proportional to 417,694.72, 576,376.32 and 236,369.92

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Solution

The fourth proportional to 417,694.72, 576,376.32 and 236,369.92 is: 326,166.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,694.72 : 576,376.32 = 236,369.92 : x
  2. Step 2: Convert to fraction form
    417,694.72/576,376.32 = 236,369.92/x
  3. Step 3: Cross multiply
    417,694.72x = 576,376.32 × 236,369.92
  4. Step 4: Simplify right side
    417,694.72x = 136,238,024,648.29
  5. Step 5: Solve for x
    x = 136,238,024,648.29/417,694.72
  6. Step 6: Final answer
    x = 326,166.50

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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.