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Finding the Fourth Proportional to 527,287.76, 790,596.44 and 447,353.28

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Solution

The fourth proportional to 527,287.76, 790,596.44 and 447,353.28 is: 670,745.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,287.76 : 790,596.44 = 447,353.28 : x
  2. Step 2: Convert to fraction form
    527,287.76/790,596.44 = 447,353.28/x
  3. Step 3: Cross multiply
    527,287.76x = 790,596.44 × 447,353.28
  4. Step 4: Simplify right side
    527,287.76x = 353,675,910,590.32
  5. Step 5: Solve for x
    x = 353,675,910,590.32/527,287.76
  6. Step 6: Final answer
    x = 670,745.53

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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.