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Finding the Fourth Proportional to 719,533.91, 992,958.27 and 397,244.63

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Solution

The fourth proportional to 719,533.91, 992,958.27 and 397,244.63 is: 548,198.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,533.91 : 992,958.27 = 397,244.63 : x
  2. Step 2: Convert to fraction form
    719,533.91/992,958.27 = 397,244.63/x
  3. Step 3: Cross multiply
    719,533.91x = 992,958.27 × 397,244.63
  4. Step 4: Simplify right side
    719,533.91x = 394,447,340,571.59
  5. Step 5: Solve for x
    x = 394,447,340,571.59/719,533.91
  6. Step 6: Final answer
    x = 548,198.40

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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.