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Finding the Fourth Proportional to 527,651.89, 791,004.79 and 190,613.32

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Solution

The fourth proportional to 527,651.89, 791,004.79 and 190,613.32 is: 285,749.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,651.89 : 791,004.79 = 190,613.32 : x
  2. Step 2: Convert to fraction form
    527,651.89/791,004.79 = 190,613.32/x
  3. Step 3: Cross multiply
    527,651.89x = 791,004.79 × 190,613.32
  4. Step 4: Simplify right side
    527,651.89x = 150,776,049,157.80
  5. Step 5: Solve for x
    x = 150,776,049,157.80/527,651.89
  6. Step 6: Final answer
    x = 285,749.09

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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.