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Finding the Fourth Proportional to 531,295.45, 733,188.27 and 289,578.22

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Solution

The fourth proportional to 531,295.45, 733,188.27 and 289,578.22 is: 399,618.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,295.45 : 733,188.27 = 289,578.22 : x
  2. Step 2: Convert to fraction form
    531,295.45/733,188.27 = 289,578.22/x
  3. Step 3: Cross multiply
    531,295.45x = 733,188.27 × 289,578.22
  4. Step 4: Simplify right side
    531,295.45x = 212,315,353,404.43
  5. Step 5: Solve for x
    x = 212,315,353,404.43/531,295.45
  6. Step 6: Final answer
    x = 399,618.24

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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.