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Finding the Fourth Proportional to 419,937.24, 630,168.30 and 170,619.24

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Solution

The fourth proportional to 419,937.24, 630,168.30 and 170,619.24 is: 256,035.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,937.24 : 630,168.30 = 170,619.24 : x
  2. Step 2: Convert to fraction form
    419,937.24/630,168.30 = 170,619.24/x
  3. Step 3: Cross multiply
    419,937.24x = 630,168.30 × 170,619.24
  4. Step 4: Simplify right side
    419,937.24x = 107,518,836,418.09
  5. Step 5: Solve for x
    x = 107,518,836,418.09/419,937.24
  6. Step 6: Final answer
    x = 256,035.49

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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.