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Finding the Fourth Proportional to 397,052.04, 547,978.40 and 235,908.40

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Solution

The fourth proportional to 397,052.04, 547,978.40 and 235,908.40 is: 325,581.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,052.04 : 547,978.40 = 235,908.40 : x
  2. Step 2: Convert to fraction form
    397,052.04/547,978.40 = 235,908.40/x
  3. Step 3: Cross multiply
    397,052.04x = 547,978.40 × 235,908.40
  4. Step 4: Simplify right side
    397,052.04x = 129,272,707,578.56
  5. Step 5: Solve for x
    x = 129,272,707,578.56/397,052.04
  6. Step 6: Final answer
    x = 325,581.27

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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.