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Finding the Fourth Proportional to 398,909.71, 597,815.71 and 170,932.42

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Solution

The fourth proportional to 398,909.71, 597,815.71 and 170,932.42 is: 256,163.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,909.71 : 597,815.71 = 170,932.42 : x
  2. Step 2: Convert to fraction form
    398,909.71/597,815.71 = 170,932.42/x
  3. Step 3: Cross multiply
    398,909.71x = 597,815.71 × 170,932.42
  4. Step 4: Simplify right side
    398,909.71x = 102,186,082,180.58
  5. Step 5: Solve for x
    x = 102,186,082,180.58/398,909.71
  6. Step 6: Final answer
    x = 256,163.44

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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.