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Finding the Fourth Proportional to 527,271.64, 790,743.66 and 190,268.56

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Solution

The fourth proportional to 527,271.64, 790,743.66 and 190,268.56 is: 285,343.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,271.64 : 790,743.66 = 190,268.56 : x
  2. Step 2: Convert to fraction form
    527,271.64/790,743.66 = 190,268.56/x
  3. Step 3: Cross multiply
    527,271.64x = 790,743.66 × 190,268.56
  4. Step 4: Simplify right side
    527,271.64x = 150,453,657,517.33
  5. Step 5: Solve for x
    x = 150,453,657,517.33/527,271.64
  6. Step 6: Final answer
    x = 285,343.73

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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.