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Finding the Fourth Proportional to 397,061.87, 547,668.27 and 261,052.34

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Solution

The fourth proportional to 397,061.87, 547,668.27 and 261,052.34 is: 360,070.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,061.87 : 547,668.27 = 261,052.34 : x
  2. Step 2: Convert to fraction form
    397,061.87/547,668.27 = 261,052.34/x
  3. Step 3: Cross multiply
    397,061.87x = 547,668.27 × 261,052.34
  4. Step 4: Simplify right side
    397,061.87x = 142,970,080,688.91
  5. Step 5: Solve for x
    x = 142,970,080,688.91/397,061.87
  6. Step 6: Final answer
    x = 360,070.04

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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.