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Finding the Fourth Proportional to 399,318.75, 550,994.85 and 235,952.52

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Solution

The fourth proportional to 399,318.75, 550,994.85 and 235,952.52 is: 325,576.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,318.75 : 550,994.85 = 235,952.52 : x
  2. Step 2: Convert to fraction form
    399,318.75/550,994.85 = 235,952.52/x
  3. Step 3: Cross multiply
    399,318.75x = 550,994.85 × 235,952.52
  4. Step 4: Simplify right side
    399,318.75x = 130,008,623,364.52
  5. Step 5: Solve for x
    x = 130,008,623,364.52/399,318.75
  6. Step 6: Final answer
    x = 325,576.06

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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.