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Finding the Fourth Proportional to 531,311.65, 733,203.60 and 289,593.46

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Solution

The fourth proportional to 531,311.65, 733,203.60 and 289,593.46 is: 399,635.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,311.65 : 733,203.60 = 289,593.46 : x
  2. Step 2: Convert to fraction form
    531,311.65/733,203.60 = 289,593.46/x
  3. Step 3: Cross multiply
    531,311.65x = 733,203.60 × 289,593.46
  4. Step 4: Simplify right side
    531,311.65x = 212,330,967,408.46
  5. Step 5: Solve for x
    x = 212,330,967,408.46/531,311.65
  6. Step 6: Final answer
    x = 399,635.44

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1.5x scale

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.