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Finding the Fourth Proportional to 536,015.12, 739,710.60 and 294,320.48

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Solution

The fourth proportional to 536,015.12, 739,710.60 and 294,320.48 is: 406,167.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,015.12 : 739,710.60 = 294,320.48 : x
  2. Step 2: Convert to fraction form
    536,015.12/739,710.60 = 294,320.48/x
  3. Step 3: Cross multiply
    536,015.12x = 739,710.60 × 294,320.48
  4. Step 4: Simplify right side
    536,015.12x = 217,711,978,853.09
  5. Step 5: Solve for x
    x = 217,711,978,853.09/536,015.12
  6. Step 6: Final answer
    x = 406,167.61

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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.