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Finding the Fourth Proportional to 531,353.52, 733,253.26 and 289,640.81

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Solution

The fourth proportional to 531,353.52, 733,253.26 and 289,640.81 is: 399,696.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,353.52 : 733,253.26 = 289,640.81 : x
  2. Step 2: Convert to fraction form
    531,353.52/733,253.26 = 289,640.81/x
  3. Step 3: Cross multiply
    531,353.52x = 733,253.26 × 289,640.81
  4. Step 4: Simplify right side
    531,353.52x = 212,380,069,813.65
  5. Step 5: Solve for x
    x = 212,380,069,813.65/531,353.52
  6. Step 6: Final answer
    x = 399,696.36

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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.