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Finding the Fourth Proportional to 398,559.44, 597,981.72 and 170,759.36

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Solution

The fourth proportional to 398,559.44, 597,981.72 and 170,759.36 is: 256,200.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,559.44 : 597,981.72 = 170,759.36 : x
  2. Step 2: Convert to fraction form
    398,559.44/597,981.72 = 170,759.36/x
  3. Step 3: Cross multiply
    398,559.44x = 597,981.72 × 170,759.36
  4. Step 4: Simplify right side
    398,559.44x = 102,110,975,798.90
  5. Step 5: Solve for x
    x = 102,110,975,798.90/398,559.44
  6. Step 6: Final answer
    x = 256,200.12

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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.