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Finding the Fourth Proportional to 539,591.32, 744,934.26 and 324,784

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Solution

The fourth proportional to 539,591.32, 744,934.26 and 324,784 is: 448,381.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,591.32 : 744,934.26 = 324,784 : x
  2. Step 2: Convert to fraction form
    539,591.32/744,934.26 = 324,784/x
  3. Step 3: Cross multiply
    539,591.32x = 744,934.26 × 324,784
  4. Step 4: Simplify right side
    539,591.32x = 241,942,728,699.84
  5. Step 5: Solve for x
    x = 241,942,728,699.84/539,591.32
  6. Step 6: Final answer
    x = 448,381.43

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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.