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Finding the Fourth Proportional to 531,611.44, 733,641.50 and 289,907.24

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Solution

The fourth proportional to 531,611.44, 733,641.50 and 289,907.24 is: 400,081.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,611.44 : 733,641.50 = 289,907.24 : x
  2. Step 2: Convert to fraction form
    531,611.44/733,641.50 = 289,907.24/x
  3. Step 3: Cross multiply
    531,611.44x = 733,641.50 × 289,907.24
  4. Step 4: Simplify right side
    531,611.44x = 212,687,982,414.46
  5. Step 5: Solve for x
    x = 212,687,982,414.46/531,611.44
  6. Step 6: Final answer
    x = 400,081.65

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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.