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Finding the Fourth Proportional to 534,902.99, 738,241.78 and 331,019.63

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Solution

The fourth proportional to 534,902.99, 738,241.78 and 331,019.63 is: 456,853.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,902.99 : 738,241.78 = 331,019.63 : x
  2. Step 2: Convert to fraction form
    534,902.99/738,241.78 = 331,019.63/x
  3. Step 3: Cross multiply
    534,902.99x = 738,241.78 × 331,019.63
  4. Step 4: Simplify right side
    534,902.99x = 244,372,522,690.17
  5. Step 5: Solve for x
    x = 244,372,522,690.17/534,902.99
  6. Step 6: Final answer
    x = 456,853.91

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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.