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Finding the Fourth Proportional to 539,105.39, 806,975.30 and 397,110.77

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Solution

The fourth proportional to 539,105.39, 806,975.30 and 397,110.77 is: 594,426.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,105.39 : 806,975.30 = 397,110.77 : x
  2. Step 2: Convert to fraction form
    539,105.39/806,975.30 = 397,110.77/x
  3. Step 3: Cross multiply
    539,105.39x = 806,975.30 × 397,110.77
  4. Step 4: Simplify right side
    539,105.39x = 320,458,582,753.98
  5. Step 5: Solve for x
    x = 320,458,582,753.98/539,105.39
  6. Step 6: Final answer
    x = 594,426.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.