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Finding the Fourth Proportional to 527,187.33, 727,521.98 and 285,469.92

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Solution

The fourth proportional to 527,187.33, 727,521.98 and 285,469.92 is: 393,950.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,187.33 : 727,521.98 = 285,469.92 : x
  2. Step 2: Convert to fraction form
    527,187.33/727,521.98 = 285,469.92/x
  3. Step 3: Cross multiply
    527,187.33x = 727,521.98 × 285,469.92
  4. Step 4: Simplify right side
    527,187.33x = 207,685,641,428.84
  5. Step 5: Solve for x
    x = 207,685,641,428.84/527,187.33
  6. Step 6: Final answer
    x = 393,950.37

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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.