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Finding the Fourth Proportional to 265,352.56, 398,184.36 and 190,391.92

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Solution

The fourth proportional to 265,352.56, 398,184.36 and 190,391.92 is: 285,699.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,352.56 : 398,184.36 = 190,391.92 : x
  2. Step 2: Convert to fraction form
    265,352.56/398,184.36 = 190,391.92/x
  3. Step 3: Cross multiply
    265,352.56x = 398,184.36 × 190,391.92
  4. Step 4: Simplify right side
    265,352.56x = 75,811,081,871.49
  5. Step 5: Solve for x
    x = 75,811,081,871.49/265,352.56
  6. Step 6: Final answer
    x = 285,699.46

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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.