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Finding the Fourth Proportional to 527,199.69, 790,635.90 and 190,196.43

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Solution

The fourth proportional to 527,199.69, 790,635.90 and 190,196.43 is: 285,235.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,199.69 : 790,635.90 = 190,196.43 : x
  2. Step 2: Convert to fraction form
    527,199.69/790,635.90 = 190,196.43/x
  3. Step 3: Cross multiply
    527,199.69x = 790,635.90 × 190,196.43
  4. Step 4: Simplify right side
    527,199.69x = 150,376,124,779.46
  5. Step 5: Solve for x
    x = 150,376,124,779.46/527,199.69
  6. Step 6: Final answer
    x = 285,235.61

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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.