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Finding the Fourth Proportional to 393,695.72, 589,655.74 and 182,890.04

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Solution

The fourth proportional to 393,695.72, 589,655.74 and 182,890.04 is: 273,922.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,695.72 : 589,655.74 = 182,890.04 : x
  2. Step 2: Convert to fraction form
    393,695.72/589,655.74 = 182,890.04/x
  3. Step 3: Cross multiply
    393,695.72x = 589,655.74 × 182,890.04
  4. Step 4: Simplify right side
    393,695.72x = 107,842,161,874.83
  5. Step 5: Solve for x
    x = 107,842,161,874.83/393,695.72
  6. Step 6: Final answer
    x = 273,922.62

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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.